Question

the accompanying data are 45 commute times to work in minutes for workers of age 16 or older in chicago. construct a frequency distribution. use a class width of 15 minutes and begin with a lower class limit of 0 minutes. do the data amounts appear to have a normal distribution? examine the data and identify anything appearing to be unique. click the icon to view the commute times. construct the frequency distribution commute time (minutes) frequency 0 - 14 15 - 29 30 - 44 45 - 59 60 - 74 75 - 89 (type whole numbers)

Explanation:

Step1: Count for 0 - 14

Count the numbers in the data - set that fall within the range 0 - 14. The values are 10, 4. So the frequency is 2.

Step2: Count for 15 - 29

Count the numbers in the data - set that fall within the range 15 - 29. The values are 15, 15, 15, 15, 20, 20, 25, 28, 15, 15, 20, 20, 25. So the frequency is 13.

Step3: Count for 30 - 44

Count the numbers in the data - set that fall within the range 30 - 44. The values are 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30. So the frequency is 11.

Step4: Count for 45 - 59

Count the numbers in the data - set that fall within the range 45 - 59. The values are 45, 45, 45, 45, 45, 45. So the frequency is 6.

Step5: Count for 60 - 74

Count the numbers in the data - set that fall within the range 60 - 74. The values are 60, 60, 60, 60, 60, 60. So the frequency is 6.

Step6: Count for 75 - 89

Count the numbers in the data - set that fall within the range 75 - 89. The value is 80. So the frequency is 1.

Answer:

Commute Time (minutes)	Frequency
15 - 29	13
30 - 44	11
45 - 59	6
60 - 74	6
75 - 89	1