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, 3,245,6,7,22,2,3,4,5,2,2,5,6)
Which statement is true for the data sets?
OA. The mean study time of students in Class A is less than students in Class B
OB. The mean study time of students in Class B is less than students in Class A
OC
The median study time of students in Class B is greater than students in Class A
OD. The range of study time of students in Class A is less than students in Class B
OE The mean and median study time of students in Class A and Class B is equal