Question

The following is the number of minutes to commute from home to work for a group of 25 automobile executives. 30 32 22 31 18 22 422830 19 24 38 25 28 37 32 36 36 28 33 27 25 35 29 31 a. How many classes would you recommend? Number of classes This is a numeric cell, so please enter numbers only. b. What class interval would you suggest? (Round up your answer to the next whole number.) Class interval c. Organize the data and plot a frequency distribution on a piece of paper. Comment on the shape of the frequency distribution. It is not symmetric. It is fairly symmetric, with most of the values between 18 and 42.

Answer 1

Frequency table

Time requred to cmmute	Tally bars	Total frequency
15-20	II	2
20 25	lll	3
25-30	lllll lll	8
30-35	lllll ll	7
35-40	llll	4
40-45	l	1
T0TAL		25

a.No. of classes-6

b.Class interval-5

c.It is fairly symmetric