Question

a random sample of 30 college students is selected. each student is asked how much time they spent on homework during the previous week. the following times (in hours) are obtained. 23, 24, 18, 20, 22, 15, 24, 25, 17, 25, 16, 18, 15, 20, 17, 21, 22, 24, 20, 18, 15, 16, 21, 22, 25, 24, 16, 17, 16, 16 construct a frequency distribution for the data. hours studied freq. 15 16 17 18 19 20 21 22 23 24 25

Explanation:

Step1: Count the frequency of 15

Count the number of 15s in the data set: 3

Step2: Count the frequency of 16

Count the number of 16s in the data set: 5

Step3: Count the frequency of 17

Count the number of 17s in the data set: 3

Step4: Count the frequency of 18

Count the number of 18s in the data set: 3

Step5: Count the frequency of 19

Count the number of 19s in the data set: 0

Step6: Count the frequency of 20

Count the number of 20s in the data set: 3

Step7: Count the frequency of 21

Count the number of 21s in the data set: 2

Step8: Count the frequency of 22

Count the number of 22s in the data set: 3

Step9: Count the frequency of 23

Count the number of 23s in the data set: 1

Step10: Count the frequency of 24

Count the number of 24s in the data set: 5

Step11: Count the frequency of 25

Count the number of 25s in the data set: 3

Answer:

Hours Studied	Freq.
16	5
17	3
18	3
19	0
20	3
21	2
22	3
23	1
24	5
25	3