Question

here are the shopping times (in minutes) of nine shoppers at a local grocery store. complete the grouped frequency distribution for the data. in the distribution, the frequency of a class is the number of shopping times in that class. (note that we are using a class width of 6.) shopping time (in minutes) 25 15 16 18 22 29 28 20 27 shopping time (in minutes) 15 to 20 21 to 26 27 to 32 frequency

Explanation:

Step1: Count for 15 - 20

Count the number of data points in the 15 - 20 range. The values 15, 16, 18, 20 are in this range. So there are 4 values.

Step2: Count for 21 - 26

Count the number of data points in the 21 - 26 range. The value 22 is in this range. So there is 1 value.

Step3: Count for 27 - 32

Count the number of data points in the 27 - 32 range. The values 27, 28, 29 are in this range. So there are 3 values.

Answer:

Shopping time (in minutes)	Frequency
21 to 26	1
27 to 32	3