Question

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

Explanation:

Step1: Count the number of times 15 appears

We go through the data set: 18, 25, 23, 21, 20, 20, 19, 18, 15, 16, 23, 15, 21, 22, 17, 20, 25, 19, 19, 18, 16, 15, 19, 21, 25, 23, 16, 18, 25, 22.
We can see that 15 appears 3 times.

Answer:

3