Agniveer Army CEE Statistics Questions

The marks obtained by 5 students in Mathematics are: 10, 15, 12, 15, 18. What is the mean of these marks?

The heights (in cm) of 7 children are: 120, 125, 120, 130, 128, 125, 122. What is the median height?

In a survey, the number of family members in 8 households are: 4, 5, 4, 6, 5, 4, 7, 5. What is the mode?

The variance of the dataset {2, 4, 6, 8, 10} is:

If the standard deviation of a set of numbers is 5, what is the variance?

The variance of {5, 5, 5, 5, 5} is:

A bag contains 5 red balls and 3 blue balls. If one ball is drawn at random, what is the probability that it is red?

A fair die is rolled once. What is the probability of getting a number greater than 4?

Two fair coins are tossed together. What is the probability of getting at least one head?

In how many ways can 5 different books be arranged on a shelf?

How many ways can a committee of 3 people be selected from a group of 7 people?

A student must answer 4 questions out of 6 questions in an exam. In how many ways can the student select the questions?

The marks obtained by 5 students in a test are: 10, 20, 30, 40, 50. What is the variance of these marks?

Two datasets have standard deviations of 5 and 10 respectively. Which dataset has greater variability?

The variance of the dataset 6, 6, 6, 6, 6 is:

The daily temperatures (in °C) for a week are: 22, 24, 22, 26, 28, 22, 25. Which measure of central tendency is 22?

How many 4-digit numbers can be formed using the digits 2, 3, 5, 7 without repetition?

From 6 officers, 2 must be chosen for night patrol duty. In how many ways can they be selected?

If the standard deviation of a dataset is 8, what is the variance?

In how many ways can 5 students be arranged in a line for a photograph?