Mathematics Practice Test – Statistics (Questions with Answers and Explanations)

Estimate the mode of the distribution

A. 51.5    B. 52.5    C. 53.3    D. 54.5

The bar chart shows the frequency distribution of marks scored by students in a class test.

Calculate the mean of the distribution.

A. 6.0    B. 3.0    C. 2.4    D. 1.8

Find the standard deviation of the above distribution.

A.     B.     C.     D.

The pie chart shows the distribution of courses offered by students. What percentage of the students offer English?

A. 30%     B. 25%     C. 35%     D. 20%

From the table above, find the median and range of the data respectively.

A. (8, 5)    B. (3, 5)     C. (5, 8)     D. (5, 3)

The pie chart shows the distribution of 600 Mathematics textbooks for Arts, Business, Science and Technical classes.

What percentage of the total number of textbooks belongs to science?

A. %     B. %    C. 25%     D. %

What is the median class?

A. 60.5 - 70.5    B. 50.5 - 60.5    C. 40.5 - 50.5    D. 30.5 - 40.5

The bar chart shows the frequency distribution of marks scored by students in a class test.

What is the median of the distribution?

A. 2    B. 4    C. 6    D. 8

The bar chart shows the frequency distribution of marks scored by students in a class test.


How many students are in the class?

A. 10     B. 24     C. 25     D. 30

The pie chart shows the distribution of 600 Mathematics textbooks for Arts, Business, Science and Technical classes.

How many textbooks are for the Technical class?

A. 100    B. 150    C. 200    D. 250

The bar chart above shows the distribution of SS2 students in a school. Find the total number of students.

A. 180    B. 135    C. 210    D. 105

Find the mode of the above distribution.

A. 9    B. 8    C. 10    D. 7

Find the variance of 1, 2, 0, -3, 5, -2, 4

A.     B.     C.     D.

Given that the mean of the scores 15, 21, 17, 26, 18 and 29 is 21, calculate the standard deviation of the scores.

A.     B. 4     C. 5     D.