Mathematics

Harmony Walsh

19 March, 03:35

Select the correct answer.

Twenty students in Class A and 20 students in Class B were asked how many hours they took to prepare for an exam. The data sets represent their answers.

Class A: {2, 5, 7, 6, 4, 3, 8, 7, 4, 5, 7, 6, 3, 5, 4, 2, 4, 6, 3, 5}

Class B: {3, 7, 6, 4, 3, 2, 4, 5, 6, 7, 2, 2, 2, 3, 4, 5, 2, 2, 5, 6}

Which statement is true for the data sets?

A.

The mean study time of students in Class A is less than students in Class B.

B.

The mean study time of students in Class B is less than students in Class A.

C.

The median study time of students in Class B is greater than students in Class A.

D.

The range of study time of students in Class A is less than students in Class B.

E.

The mean and median study time of students in Class A and Class B is equal.