UTME/SSCE Mathematics Practice Tests – Statistics

Hello and Welcome to Mathematics Practice Tests - Statistics

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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

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

A. $\sqrt{10}$     B. 4     C. 5     D. $\sqrt{30}$

The mean age of a group of students is 15 years. When the age of a teacher, 45 years old, is added to the ages of the students, the mean of their ages becomes 18 years. Find the number of students in the group

A. 7    B. 9    C. 15   D. 42

Find the variance of 2, 6, 8, 6, 2 and 6

A. $\sqrt{5}$     B. $\sqrt{6}$     C. 5     D. 6

If the mean of five consecutive integers is 30, find the largest of the numbers

A. 28     B. 30     C. 32     D. 34

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