The sample data below shows the number of hours spent by 5 students over the weekend to prepare for Monday's Business Statistics exam. The mean and the median of the numbers of hours spent by the 5 students are
A)2 hours and 5 hours,respectively
B)3 hours and 5 hours,respectively
C)5 hours and 2 hours,respectively
D)5 hours and 3 hours,respectively

Question

The sample data below shows the number of hours spent by 5 students over the weekend to prepare for Monday's Business Statistics exam.  The mean and the median of the numbers of hours spent by the 5 students are
A)2 hours and 5 hours,respectively 
B)3 hours and 5 hours,respectively 
C)5 hours and 2 hours,respectively 
D)5 hours and 3 hours,respectively

Quizplus · Accepted Answer

To find the mean, we sum up all the hours and divide by 5 (the number of students):
(1+2+4+6+8)/5 = 21/5 = 4.2 hours (rounded to one decimal place)
So the mean is 4.2 hours.

To find the median, we need to arrange the hours in order from smallest to largest:
1, 2, 4, 6, 8
The median is the middle value, which is 4 hours.
So the median is 4 hours.

Therefore, the best choice is D) 5 hours and 3 hours, respectively, because the mean is 4.2 hours and the median is 4 hours.

The Sample Data Below Shows the Number of Hours Spent