When a machine is serviced, between 1 and 5 of its parts are replaced. Records indicate that 7% of machines need 1 part replaced, 8% need 5 parts replaced, 12% need 4 parts replaced, and the mean number of parts replaced per service is 2.82. Let the random variable X be the number of parts that need replacing when a randomly selected machine is serviced. (a) Complete the probability distribution table for X below. 1 2 3 X 4 5 P(X = x) 0.07 0.32 0.41 0.12 0.08

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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When a machine is serviced, between 1 and 5 of its parts are replaced. Records indicate that 7%
of machines need 1 part replaced, 8% need 5 parts replaced, 12% need 4 parts replaced, and
the mean number of parts replaced per service is 2.82.
Let the random variable X be the number of parts that need replacing when a randomly selected
machine is serviced.
(a)
Complete the probability distribution table for X below.
x
1
2
3
4
5
P(X = x)
0.07
0.32
0.41
0.12
0.08
Transcribed Image Text:When a machine is serviced, between 1 and 5 of its parts are replaced. Records indicate that 7% of machines need 1 part replaced, 8% need 5 parts replaced, 12% need 4 parts replaced, and the mean number of parts replaced per service is 2.82. Let the random variable X be the number of parts that need replacing when a randomly selected machine is serviced. (a) Complete the probability distribution table for X below. x 1 2 3 4 5 P(X = x) 0.07 0.32 0.41 0.12 0.08
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