For question B? how do you find the answer ?

Data collected on Home Depot's sales of outdoor driveway lights from the past 75 days are as follows (rounded to the nearest 10).

Units Sold	Number of Times
0	2
10	4
20	8
30	11
40	21
50	23
60	6

a. Determine the relative frequency for each number of units sold.

b. Suppose that the following random numbers were obtained using Excel:

0.04 0.93 0.32 0.47 0.96 0.41 0.17 0.88 0.26 0.48

Use these random numbers to simulate 10 days of sales.

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