Exhibit 2-4 Michael's Compute-All, a national computer retailer, has kept a record of the number of...

Exhibit 2-4

Michael's Compute-All, a national computer retailer, has kept a record of the number of laptop computers they have sold for a period of 80 days. Their sales records are shown below:

	Number of Laptops Sold	Number of Days

	0 - 19	5
	20 - 39	15
	40 - 59	30
	60 - 79	20
	80 - 99	10
		Total 80

14. Refer to Exhibit 2-4. The class width of the above distribution is

a.	0 to 100
b.	20
c.	80
d.	5

15. Refer to Exhibit 2-4. The lower limit of the first class is

a.	5
b.	80
c.	0
d.	20

16. Refer to Exhibit 2-4. If one develops a cumulative frequency distribution for the above data, the last class will have a frequency of

a.	10
b.	100
c.	0 to 100
d.	80

17. Refer to Exhibit 2-4. The percentage of days in which the company sold at least 40 laptops is

a.	37.5%
b.	62.5%
c.	90.0%
d.	75.0%

18. Refer to Exhibit 2-4. The number of days in which the company sold less than 60 laptops is

a.	20
b.	30
c.	50
d.	60

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