f. What is the expected number of cars that will be sold at a given day? Explain the meaning of this value. g. What is the standard deviation of the number of cars that will be sold at a given day?
f. What is the expected number of cars that will be sold at a given day? Explain the meaning of this value. g. What is the standard deviation of the number of cars that will be sold at a given day?
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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Question f and g only .
Transcribed Image Text:The following are the number of cars sold per day at ABC Motor Corporation during
the past 500 working days.
Number of Cars Sold Per Day (X)
Frequency of Occurrence
40
1
100
2
142
3
66
4
36
30
26
7
20
8
16
9.
14
10
11
2
Total
500
d. What is the probability that at least six, but at most ten cars will be sold at a given
day?
e. What is the probability that fewer than eight cars, but greater than three cars will be
sold at a given day?
f. What is the expected number of cars that will be sold at a given day? Explain the
meaning of this value.
g. What is the standard deviation of the number of cars that will be sold at a given day?
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