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desireelg_7

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on: Mar 25, 2023

Question 1

The following table shows part of the probability distribution for the number of boats sold daily at Boats Unlimited. It is known that the average number of boats sold daily is 1.57.

 

x

f(x)

0

0.20

1

0.30

2

0.32

3

?

4

0.05

5

0.02


 

Compute the variance and the standard deviation for this probability distribution.



Question 2

The management of a grocery store has kept a record of bad checks received per day for a period of 200 days. The data are shown below.
 


 

Number of Bad

 

Checks Received

Number of Days

0

8

1

12

2

20

3

60

4

40

5

30

6

20

7

10


 

a.Develop a probability distribution for the above data.
b.Is the probability distribution that you found in Part “a” a proper probability distribution? Explain.
c.Determine the cumulative probability distribution F(x).
d.What is the probability that in a given day the store receives four or less bad checks?
e.What is the probability that in a given day the store receives more than 3 bad checks?

Essentials of Statistics for Business and Economics ¦ Anderson, Sweeney, Williams, Camm, Cochran ¦ 7th Edition
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Marked as best answer by desireelg_7 on Mar 25, 2023

Harsh06

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Reply #1 on: Mar 25, 2023
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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desireelg_7

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Reply 2 on: Mar 25, 2023
Excellent

zacnyjessica

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Reply 3 on: Yesterday
Wow, this really help

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