Question

here are the shopping times (in minutes) of ten 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 5.) shopping time (in minutes) 18 28 34 20 36 23 32 33 20 37 shopping time (in minutes) frequency 18 to 22 23 to 27 28 to 32 33 to 37

Explanation:

Step1: Count 18 - 22

Check which data points (18,28,34,20,36,23,32,33,20,37) are in 18 - 22. Values: 18,20,20. So frequency = 3.

Step2: Count 23 - 27

Check data points in 23 - 27. Value: 23. So frequency = 1.

Step3: Count 28 - 32

Check data points in 28 - 32. Value: 28. So frequency = 1.

Step4: Count 33 - 37

Check data points in 33 - 37. Values: 34,36,33,37. So frequency = 4.

Answer:

Shopping time (in minutes)	Frequency
23 to 27	1
28 to 32	1
33 to 37	4