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Answer first
Statistics PYQs (previous year questions) for CDS: Statistics (Elementary Mathematics) had 185 questions across the 66 official CDS papers we tagged (2016–2026), and appeared in 22 of them. Asked in 11 of 11 years. The concepts asked in the most papers: Mean, Median, Pie Charts.
Year-wise question count
Asked in 11 of 11 years, with 2 papers each year.
| Year | Questions |
|---|---|
| CDS 2026 | 13 |
| CDS 2025 | 25 |
| CDS 2024 | 13 |
| CDS 2023 | 12 |
| CDS 2022 | 19 |
| CDS 2021 | 19 |
| CDS 2020 | 16 |
| CDS 2019 | 20 |
| CDS 2018 | 10 |
| CDS 2017 | 22 |
| CDS 2016 | 16 |
Most-asked concepts
Sorted by the number of papers a concept appeared in.
| Concept | Questions | Papers | Years |
|---|---|---|---|
| Mean | 50 | 16 | 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016 |
| Median | 22 | 14 | 2026, 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2016 |
| Pie Charts | 16 | 9 | 2026, 2025, 2024, 2020, 2018, 2017, 2016 |
| Data Interpretation | 43 | 7 | 2025, 2022, 2021, 2020, 2019, 2017 |
| Mode | 7 | 7 | 2026, 2025, 2024, 2023, 2019, 2017 |
| Frequency Distribution | 9 | 6 | 2025, 2017, 2016 |
| Measures of Central Tendency | 6 | 4 | 2025, 2020, 2019, 2016 |
| Harmonic Mean | 3 | 3 | 2020, 2018 |
| Arithmetic Mean | 9 | 2 | 2026 |
| Frequency Polygon | 2 | 2 | 2019, 2018 |
| Geometric Mean | 2 | 2 | 2024, 2017 |
| Mean and Median | 2 | 2 | 2017, 2016 |
| Types of Data | 2 | 2 | 2017, 2016 |
| Cumulative Frequency | 2 | 1 | 2025 |
| Averages | 1 | 1 | 2021 |
| Bar Diagram | 1 | 1 | 2019 |
| Data Collection | 1 | 1 | 2019 |
| Data Representation | 1 | 1 | 2019 |
| Data Sufficiency | 1 | 1 | 2024 |
| Graphical Representation | 1 | 1 | 2025 |
| Histogram | 1 | 1 | 2020 |
| Mean, Median, Mode | 1 | 1 | 2024 |
| Raw Data | 1 | 1 | 2025 |
| Scales of Measurement | 1 | 1 | 2018 |
How to practise Statistics PYQs
- Start with the concepts at the top of the table. They have come back the most.
- Solve one year’s Statistics questions from the official PDF against the clock, then check the answer listed below.
- Log every miss as a concept gap, a calculation slip or a misread. Each needs a different fix.
- Once a concept is clean in two papers, move to the next. Then sit a full paper from the year pages.
Questions by year
Each line gives the question number and paper, type, concept, our one-line summary and the official answer, with a link to the official PDF.
CDS2026
- Q.37 (CDS (I) Maths) · MCQ · Arithmetic Mean: Mean of five numbers from sums of all triples PDF
- Q.38 (CDS (I) Maths) · MCQ · Arithmetic Mean: New mean after adding 10 to each observation PDF
- Q.39 (CDS (I) Maths) · MCQ · Arithmetic Mean: Mean from sums of deviations about two values PDF
- Q.40 (CDS (I) Maths) · MCQ · Median: Values of x given the median of an ordered list PDF
- Q.91 (CDS (II) Maths) · MCQ · Arithmetic Mean: Combined mean of two sets of observations PDF
- Q.92 (CDS (II) Maths) · MCQ · Arithmetic Mean: Ratio of male to female employees from average wages PDF
- Q.93 (CDS (II) Maths) · MCQ · Median: Value of x from the median of ten observations PDF
- Q.95 (CDS (II) Maths) · MCQ · Arithmetic Mean: Sum of deviations of heights from their mean PDF
- Q.96 (CDS (II) Maths) · MCQ · Mode: Mode of a grouped frequency distribution PDF
- Q.97 (CDS (II) Maths) · MCQ · Arithmetic Mean: Value of a linear sum given the mean of 15 observations PDF
- Q.98 (CDS (II) Maths) · MCQ · Arithmetic Mean: Mean of a discrete frequency distribution PDF
- Q.99 (CDS (II) Maths) · MCQ · Arithmetic Mean: Missing frequencies given the mean of a distribution PDF
- Q.100 (CDS (II) Maths) · MCQ · Pie Charts: Statements on percentage and pie-chart angle for investments PDF
CDS2025
- Q.86 (CDS (I) Maths) · MCQ · Frequency Distribution: Find f in a frequency distribution of 205 observations PDF
- Q.87 (CDS (I) Maths) · MCQ · Median: Median of the frequency distribution PDF
- Q.88 (CDS (I) Maths) · MCQ · Mode: Mode of the frequency distribution PDF
- Q.89 (CDS (I) Maths) · MCQ · Graphical Representation: Most suitable graph for a discrete frequency distribution PDF
- Q.90 (CDS (I) Maths) · MCQ · Mean: Mean of the frequency distribution PDF
- Q.91 (CDS (I) Maths) · MCQ · Cumulative Frequency: Students scoring between 60 and 70 from a less-than table PDF
- Q.92 (CDS (I) Maths) · MCQ · Cumulative Frequency: Students scoring more than 50 from a less-than table PDF
- Q.93 (CDS (I) Maths) · MCQ · Data Interpretation: Year when newspaper D circulation is near its average PDF
- Q.94 (CDS (I) Maths) · MCQ · Data Interpretation: Year when D is near the average of all newspapers PDF
- Q.95 (CDS (I) Maths) · MCQ · Data Interpretation: Cases where a newspaper average exceeds the overall average PDF
- Q.96 (CDS (I) Maths) · MCQ · Pie Charts: Average persons per pucca house from pie charts PDF
- Q.97 (CDS (I) Maths) · MCQ · Pie Charts: Change in pie-chart angle if more kutcha houses are built PDF
- Q.98 (CDS (I) Maths) · MCQ · Pie Charts: Families per kutcha house after houseless families shift PDF
- Q.99 (CDS (I) Maths) · MCQ · Raw Data: Percentage of students scoring above a mark from raw data PDF
- Q.100 (CDS (I) Maths) · MCQ · Mean: Corrected mean after two misread observations PDF
- Q.91 (CDS (II) Maths) · MCQ · Measures of Central Tendency: Measure of central tendency least affected by extreme values (official answer: D) PDF
- Q.92 (CDS (II) Maths) · MCQ · Measures of Central Tendency: Suitable average for rates like speed or price per unit (official answer: C) PDF
- Q.93 (CDS (II) Maths) · MCQ · Frequency Distribution: Analysis of a more-than cumulative distribution of marks (official answer: D) PDF
- Q.94 (CDS (II) Maths) · MCQ · Mean: New mean when every observation is multiplied by 5 (official answer: B) PDF
- Q.95 (CDS (II) Maths) · MCQ · Mean: Combined mean of three groups with given frequencies and means (official answer: A) PDF
- Q.96 (CDS (II) Maths) · MCQ · Measures of Central Tendency: Identify a positional average (official answer: B) PDF
- Q.97 (CDS (II) Maths) · MCQ · Frequency Distribution: Find unknown u in a frequency distribution (official answer: C) PDF
- Q.98 (CDS (II) Maths) · MCQ · Frequency Distribution: Find unknown v in a frequency distribution (official answer: C) PDF
- Q.99 (CDS (II) Maths) · MCQ · Median: Find k in a cumulative distribution with median 24 (official answer: C) PDF
- Q.100 (CDS (II) Maths) · MCQ · Mean: Mean of the distribution with median 24 (official answer: D) PDF
CDS2024
- Q.15 (CDS (I) Maths) · MCQ · Mean, Median, Mode: Effect on mean, median and mode when one data value changes (official answer: B) PDF
- Q.71 (CDS (I) Maths) · MCQ · Pie Charts: Sum of the smallest and largest sector areas of a pie diagram (official answer: D) PDF
- Q.72 (CDS (I) Maths) · MCQ · Pie Charts: Perimeter-related value of the smallest sector of a pie diagram (official answer: B) PDF
- Q.83 (CDS (I) Maths) · MCQ · Pie Charts: Migrants in an age group from two pie charts (official answer: A) PDF
- Q.84 (CDS (I) Maths) · MCQ · Pie Charts: Maximum difference between groups in two pie charts (official answer: C) PDF
- Q.85 (CDS (I) Maths) · MCQ · Pie Charts: Difference between migrants of two age groups from a state (official answer: B) PDF
- Q.21 (CDS (II) Maths) · MCQ · Mean: nth number from the mean of n numbers and the sum of the others PDF
- Q.22 (CDS (II) Maths) · MCQ · Geometric Mean: Geometric mean of a set of numbers PDF
- Q.41 (CDS (II) Maths) · MCQ · Mean: Ratio of boys to girls from mean weights PDF
- Q.54 (CDS (II) Maths) · MCQ · Median: Median of a frequency distribution PDF
- Q.55 (CDS (II) Maths) · MCQ · Mode: Mode of a frequency distribution PDF
- Q.67 (CDS (II) Maths) · MCQ · Data Sufficiency: Data sufficiency on the average of five integers PDF
- Q.77 (CDS (II) Maths) · MCQ · Mean: Maximum possible noon temperature given a weekly average PDF
CDS2023
- Q.20 (CDS (I) Maths) · MCQ · Mean: Corrected combined average of two sections after an entry error (official answer: A) PDF
- Q.81 (CDS (I) Maths) · MCQ · Mode: Mode of a grouped frequency distribution (official answer: B) PDF
- Q.82 (CDS (I) Maths) · MCQ · Median: Value of R from median and mode relation (official answer: A) PDF
- Q.83 (CDS (I) Maths) · MCQ · Mean: Mean of a grouped frequency distribution (official answer: D) PDF
- Q.84 (CDS (I) Maths) · MCQ · Median: Value of 3M for the median of grouped data (official answer: C) PDF
- Q.9 (CDS (II) Maths) · MCQ · Mean: Mean of n numbers from sums of deviations about 10 and 20 (official answer: A) PDF
- Q.10 (CDS (II) Maths) · MCQ · Median: Value of 2M + 5 where M is the median of given data (official answer: D) PDF
- Q.47 (CDS (II) Maths) · MCQ · Mean: Missing frequency k from the mean of weekly wages (official answer: C) PDF
- Q.48 (CDS (II) Maths) · MCQ · Median: Median of a grouped wage distribution (official answer: B) PDF
- Q.85 (CDS (II) Maths) · MCQ · Mean: Mean of two values from means of five and of three values (official answer: D) PDF
- Q.89 (CDS (II) Maths) · MCQ · Mean: Average weight of the seven cousins (official answer: A) PDF
- Q.97 (CDS (II) Maths) · MCQ · Mean: Data sufficiency: comparing averages of four numbers (official answer: A) PDF
CDS2022
- Q.91 (CDS (I) Maths) · MCQ · Data Interpretation: Total city population from age-group table (official answer: C) PDF
- Q.92 (CDS (I) Maths) · MCQ · Data Interpretation: Number of taxpayers below age 30 (official answer: B) PDF
- Q.93 (CDS (I) Maths) · MCQ · Data Interpretation: Years with expenditure growth above 15% (official answer: A) PDF
- Q.94 (CDS (I) Maths) · MCQ · Data Interpretation: Year with maximum percentage increase in spending (official answer: B) PDF
- Q.95 (CDS (I) Maths) · MCQ · Data Interpretation: Difference between budget heads from pie chart (official answer: C) PDF
- Q.96 (CDS (I) Maths) · MCQ · Data Interpretation: Increase in allocation to A if budget triples (official answer: C) PDF
- Q.97 (CDS (I) Maths) · MCQ · Data Interpretation: Percent of candidates failing in at least two subjects (official answer: D) PDF
- Q.98 (CDS (I) Maths) · MCQ · Data Interpretation: Percent of candidates failing in only one subject (official answer: B) PDF
- Q.99 (CDS (I) Maths) · MCQ · Data Interpretation: Percent of candidates failing in at least one subject (official answer: C) PDF
- Q.100 (CDS (I) Maths) · MCQ · Data Interpretation: Candidates passing in two or more subjects (official answer: A) PDF
- Q.48 (CDS (II) Maths) · MCQ · Mean: Unknown frequency p from total and mean (official answer: C) PDF
- Q.49 (CDS (II) Maths) · MCQ · Mean: Unknown frequency q from total and mean (official answer: D) PDF
- Q.50 (CDS (II) Maths) · MCQ · Median: Median of a frequency distribution (official answer: A) PDF
- Q.62 (CDS (II) Maths) · MCQ · Median: Median of all factors of 120 (official answer: B) PDF
- Q.63 (CDS (II) Maths) · MCQ · Mean: Mean from sums of deviations about two values (official answer: C) PDF
- Q.64 (CDS (II) Maths) · MCQ · Mean: Students in a school from combined average (official answer: B) PDF
- Q.65 (CDS (II) Maths) · MCQ · Median: Possible medians of ordered data with x (official answer: D) PDF
- Q.66 (CDS (II) Maths) · MCQ · Mean: Mean of odd numbers from mean of even numbers (official answer: A) PDF
- Q.67 (CDS (II) Maths) · MCQ · Mean: Change in mean after correcting misread marks (official answer: D) PDF
CDS2021
- Q.27 (CDS (I) Maths) · MCQ · Averages: Average score of girls from class and boys averages (official answer: C) PDF
- Q.91 (CDS (I) Maths) · MCQ · Data Interpretation: Countries with at least 5% growth in car output (official answer: B) PDF
- Q.92 (CDS (I) Maths) · MCQ · Data Interpretation: Percentage of students scoring at most 50% (official answer: B) PDF
- Q.93 (CDS (I) Maths) · MCQ · Median: Median of a small data set (official answer: B) PDF
- Q.94 (CDS (I) Maths) · MCQ · Mean: Mean of the first ten composite numbers (official answer: D) PDF
- Q.95 (CDS (I) Maths) · MCQ · Mean: Average after adding grace marks (official answer: B) PDF
- Q.96 (CDS (I) Maths) · MCQ · Mean: Combined mean of two groups (official answer: C) PDF
- Q.97 (CDS (I) Maths) · MCQ · Data Interpretation: Tablet type produced least over six years (official answer: B) PDF
- Q.98 (CDS (I) Maths) · MCQ · Data Interpretation: Pair of years with least difference in output (official answer: A) PDF
- Q.99 (CDS (I) Maths) · MCQ · Data Interpretation: Ratio of percentage drops in production (official answer: C) PDF
- Q.100 (CDS (I) Maths) · MCQ · Data Interpretation: Year when one type exceeded two others combined (official answer: C) PDF
- Q.91 (CDS (II) Maths) · MCQ · Data Interpretation: Employee categories unchanged between two years (official answer: D) PDF
- Q.92 (CDS (II) Maths) · MCQ · Data Interpretation: Category with maximum percentage change (official answer: B) PDF
- Q.93 (CDS (II) Maths) · MCQ · Data Interpretation: Percentage increase in category E employees (official answer: B) PDF
- Q.94 (CDS (II) Maths) · MCQ · Data Interpretation: Categories increasing by the same percentage (official answer: D) PDF
- Q.95 (CDS (II) Maths) · MCQ · Data Interpretation: Percentage increase in total car production (official answer: B) PDF
- Q.96 (CDS (II) Maths) · MCQ · Data Interpretation: Instances of growth above 20% by company (official answer: A) PDF
- Q.97 (CDS (II) Maths) · MCQ · Data Interpretation: Year with minimum growth in car production (official answer: D) PDF
- Q.98 (CDS (II) Maths) · MCQ · Data Interpretation: Minimum yearly percentage increase (official answer: A) PDF
CDS2020
- Q.35 (CDS (I) Maths) · MCQ · Median: Median of a small ungrouped data set (official answer: A) PDF
- Q.36 (CDS (I) Maths) · MCQ · Pie Charts: Largest sector angle in a pie chart with ratio 1:2:3 (official answer: B) PDF
- Q.38 (CDS (I) Maths) · MCQ · Data Interpretation: Jails with highest and lowest share of trained convicts (official answer: B) PDF
- Q.39 (CDS (I) Maths) · MCQ · Data Interpretation: Jail with the best placement rate of trained convicts (official answer: D) PDF
- Q.40 (CDS (I) Maths) · MCQ · Data Interpretation: Jails where over half of trained convicts got jobs (official answer: A) PDF
- Q.45 (CDS (I) Maths) · MCQ · Harmonic Mean: Harmonic mean of two observations from sum and product (official answer: C) PDF
- Q.91 (CDS (II) Maths) · MCQ · Median: Median of marks of all candidates including failures (official answer: A) PDF
- Q.92 (CDS (II) Maths) · MCQ · Median: Median yield of barley from seven plots (official answer: C) PDF
- Q.93 (CDS (II) Maths) · MCQ · Measures of Central Tendency: Measure suited to the average shoe size sold (official answer: D) PDF
- Q.94 (CDS (II) Maths) · MCQ · Histogram: What rectangle height shows in a histogram (official answer: D) PDF
- Q.95 (CDS (II) Maths) · MCQ · Mean: Age of a new member from change in family mean (official answer: B) PDF
- Q.96 (CDS (II) Maths) · MCQ · Mean: Boys exceeding girls from mean weights (official answer: C) PDF
- Q.97 (CDS (II) Maths) · MCQ · Mean: Sum of deviations from the mean (official answer: B) PDF
- Q.98 (CDS (II) Maths) · MCQ · Mean: Mean of first three of five terms in terms of m (official answer: C) PDF
- Q.99 (CDS (II) Maths) · MCQ · Median: Median of even numbers up to 100 (official answer: D) PDF
- Q.100 (CDS (II) Maths) · MCQ · Harmonic Mean: Arithmetic mean from harmonic and geometric means (official answer: D) PDF
CDS2019
- Q.61 (CDS (I) Maths) · MCQ · Mean: Missing frequency from the mean of grouped data (official answer: C) PDF
- Q.62 (CDS (I) Maths) · MCQ · Median: Median of a given frequency distribution (official answer: C) PDF
- Q.63 (CDS (I) Maths) · MCQ · Mean: New average when four more consecutive numbers are added (official answer: B) PDF
- Q.64 (CDS (I) Maths) · MCQ · Mean: Average of two-digit numbers unchanged by digit reversal (official answer: C) PDF
- Q.65 (CDS (I) Maths) · MCQ · Data Representation: Which charts are diagrammatic representations of data (official answer: D) PDF
- Q.66 (CDS (I) Maths) · MCQ · Data Collection: Identify the method that does not give primary data (official answer: B) PDF
- Q.67 (CDS (I) Maths) · MCQ · Bar Diagram: Segment lengths in a percentage bar diagram of expenses (official answer: B) PDF
- Q.68 (CDS (I) Maths) · MCQ · Mean: Combined mean of two groups of observations (official answer: A) PDF
- Q.69 (CDS (I) Maths) · MCQ · Measures of Central Tendency: Match a measure with its graphical location (official answer: A) PDF
- Q.70 (CDS (I) Maths) · MCQ · Frequency Polygon: Wrongly matched feature of a frequency polygon (official answer: D) PDF
- Q.1 (CDS (II) Maths) · MCQ · Mean: Mean of a grouped frequency distribution with missing values (official answer: C) PDF
- Q.2 (CDS (II) Maths) · MCQ · Mode: Mode of a grouped frequency distribution (official answer: C) PDF
- Q.3 (CDS (II) Maths) · MCQ · Data Interpretation: Company Y scooters at one showroom as percent of another's total (official answer: C) PDF
- Q.4 (CDS (II) Maths) · MCQ · Data Interpretation: Percent by which one showroom's total exceeds another's X sales (official answer: C) PDF
- Q.5 (CDS (II) Maths) · MCQ · Data Interpretation: Average company Y scooters sold by three showrooms (official answer: A) PDF
- Q.6 (CDS (II) Maths) · MCQ · Data Interpretation: Difference between showroom totals and company X sales (official answer: D) PDF
- Q.7 (CDS (II) Maths) · MCQ · Data Interpretation: Average pedestrians killed per day in 2017 (official answer: D) PDF
- Q.8 (CDS (II) Maths) · MCQ · Data Interpretation: Percentage change in pedestrian deaths over 2014-17 (official answer: A) PDF
- Q.9 (CDS (II) Maths) · MCQ · Data Interpretation: Average bikers killed daily in 2017 (official answer: D) PDF
- Q.10 (CDS (II) Maths) · MCQ · Data Interpretation: Average cyclists killed daily in 2017 (official answer: A) PDF
CDS2018
- Q.51 (CDS (I) Maths) · MCQ · Pie Charts: Central angle of the social services sector (official answer: C) PDF
- Q.52 (CDS (I) Maths) · MCQ · Mean: Two numbers from their arithmetic and geometric means (official answer: C) PDF
- Q.53 (CDS (I) Maths) · MCQ · Mean: Sixth observation from overlapping means (official answer: C) PDF
- Q.22 (CDS (II) Maths) · MCQ · Harmonic Mean: Value of an expression in P, Q and their harmonic mean (official answer: B) PDF
- Q.55 (CDS (II) Maths) · MCQ · Scales of Measurement: Scale used for hotel rating data (official answer: B) PDF
- Q.56 (CDS (II) Maths) · MCQ · Mean: Ratio of section sizes from combined average (official answer: A) PDF
- Q.57 (CDS (II) Maths) · MCQ · Median: Median after adding two observations (official answer: B) PDF
- Q.58 (CDS (II) Maths) · MCQ · Frequency Polygon: Shape of frequency polygon as data grows (official answer: B) PDF
- Q.59 (CDS (II) Maths) · MCQ · Mean: Position of the pooled mean of two groups (official answer: A) PDF
- Q.60 (CDS (II) Maths) · Assertion-Reason · Median: Statement pair on median and open-ended classes (official answer: A) PDF
CDS2017
- Q.51 (CDS (I) Maths) · MCQ · Mean: Number added that raises mean of 5 numbers (official answer: D) PDF
- Q.52 (CDS (I) Maths) · MCQ · Mean: Mean of middle 100 students (official answer: D) PDF
- Q.53 (CDS (I) Maths) · MCQ · Mean: Missing frequency from distribution mean (official answer: A) PDF
- Q.54 (CDS (I) Maths) · MCQ · Pie Charts: New pie chart after removing a slice (official answer: C) PDF
- Q.55 (CDS (I) Maths) · MCQ · Mode: Mode from mean and median (official answer: A) PDF
- Q.56 (CDS (I) Maths) · MCQ · Mean: Average of consecutive even and odd numbers (official answer: D) PDF
- Q.57 (CDS (I) Maths) · MCQ · Mean: Money spent from average price of pencils (official answer: B) PDF
- Q.58 (CDS (I) Maths) · MCQ · Frequency Distribution: Missing frequencies from cumulative values (official answer: C) PDF
- Q.86 (CDS (II) Maths) · MCQ · Data Interpretation: Boys studying Statistics and Physics (official answer: C) PDF
- Q.87 (CDS (II) Maths) · MCQ · Data Interpretation: Girls in Statistics as percent of Chemistry (official answer: B) PDF
- Q.88 (CDS (II) Maths) · MCQ · Data Interpretation: Subjects with equal boy-girl gap (official answer: C) PDF
- Q.89 (CDS (II) Maths) · MCQ · Data Interpretation: Boys in Maths minus girls in Physics (official answer: B) PDF
- Q.90 (CDS (II) Maths) · MCQ · Data Interpretation: Ratio of total boys to girls (official answer: A) PDF
- Q.91 (CDS (II) Maths) · MCQ · Frequency Distribution: Definition of frequency density (official answer: A) PDF
- Q.92 (CDS (II) Maths) · MCQ · Mean: Workers earning below mean salary (official answer: A) PDF
- Q.94 (CDS (II) Maths) · MCQ · Pie Charts: Incorrect statement on comparing pie diagrams (official answer: C) PDF
- Q.95 (CDS (II) Maths) · MCQ · Mode: Statements on mode (official answer: C) PDF
- Q.96 (CDS (II) Maths) · MCQ · Pie Charts: What pie slices are proportional to (official answer: D) PDF
- Q.97 (CDS (II) Maths) · MCQ · Geometric Mean: Value of z from geometric means (official answer: C) PDF
- Q.98 (CDS (II) Maths) · MCQ · Types of Data: Classify birth registration data (official answer: B) PDF
- Q.99 (CDS (II) Maths) · MCQ · Mean and Median: Mean and median of five heights (official answer: B) PDF
- Q.100 (CDS (II) Maths) · MCQ · Mean: Combined average height of two classes (official answer: C) PDF
CDS2016
- Q.91 (CDS (I) Maths) · MCQ · Pie Charts: Total votes from a party's pie-chart angle (official answer: B) PDF
- Q.92 (CDS (I) Maths) · MCQ · Mean and Median: New mean and median after subtracting 1 (official answer: A) PDF
- Q.93 (CDS (I) Maths) · MCQ · Frequency Distribution: Statements on age distribution of 40 children (official answer: A) PDF
- Q.94 (CDS (I) Maths) · MCQ · Measures of Central Tendency: Compare GM and median of powers (official answer: C) PDF
- Q.95 (CDS (I) Maths) · MCQ · Mean: Statements on AM and HM of numbers (official answer: C) PDF
- Q.40 (CDS (II) Maths) · MCQ · Mean: Percentage of boys from group means (official answer: B) PDF
- Q.86 (CDS (II) Maths) · MCQ · Mean: Average score of three classes (official answer: A) PDF
- Q.87 (CDS (II) Maths) · MCQ · Median: Median of values in terms of x (official answer: A) PDF
- Q.88 (CDS (II) Maths) · MCQ · Median: Effect on median of raising largest values (official answer: D) PDF
- Q.89 (CDS (II) Maths) · MCQ · Mean: Cricketer's new average after 11th innings (official answer: C) PDF
- Q.90 (CDS (II) Maths) · MCQ · Mean: Corrected mean after fixing two values (official answer: A) PDF
- Q.91 (CDS (II) Maths) · MCQ · Types of Data: Type of variable for credit cards held (official answer: B) PDF
- Q.92 (CDS (II) Maths) · MCQ · Mean: Girls' average from class and boys' averages (official answer: B) PDF
- Q.93 (CDS (II) Maths) · MCQ · Pie Charts: Percent share from a 108° sector (official answer: C) PDF
- Q.94 (CDS (II) Maths) · MCQ · Frequency Distribution: Statements on exclusive and inclusive classes (official answer: D) PDF
- Q.95 (CDS (II) Maths) · MCQ · Frequency Distribution: Frequency density of a class (official answer: D) PDF
Other Elementary Mathematics topics
- Number System and Simplification PYQs
- Percentage, Ratio, Profit and Interest PYQs
- Time, Speed and Work PYQs
- Algebra PYQs
- Trigonometry PYQs
- Geometry PYQs
- Mensuration PYQs
FAQ
How many Statistics questions come in CDS?
In the official papers we tagged: 13 in 2026, 25 in 2025, 13 in 2024, 12 in 2023, 19 in 2022, 19 in 2021, 16 in 2020, 20 in 2019, 10 in 2018, 22 in 2017 and 16 in 2016 (2 papers each year). That is 185 questions in all, about 8% of Elementary Mathematics.
Which Statistics topics repeat in CDS?
Asked in the most papers: Mean, Median, Pie Charts. The concept table lists every one with its count.
Are these official CDS questions?
Yes. Every question is from an official CDS paper hosted on our year pages. The one-line summaries are ours; open the PDF linked beside each question for the full text.