38. Possible values of X, the number of components in a
system submitted for repair that must be replaced, are 1,
2, 3, and 4 with corresponding probabilities .15, .35, .35,
and .15, respectively.
a. Calculate E(X) and then E(5 – X).
b. Would the repair facility be better off charging a
flat fee of $75 or else the amount $[150/(5 – X)]?
[Note: It is not generally true that E(c/Y) = c/E(Y).]
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Answer:
If 4* - 4- = 24 then find the value of (2x).
26. If 8*+1
64, then find the value of 32x +1
27. If x-2 = 64, then find the value of x1/3 + xº.
28. If (23)2 = 44, then find the value of x3.
29. If (16)2x+3 (64)*+3, then find the value of 42x-2
3
81
30. If
then find the value of x.
3
16
X
2x
2
2
2
then find theIf 4* - 4- = 24 then find the value of (2x).
26. If 8*+1
64, then find the value of 32x +1
27. If x-2 = 64, then find the value of x1/3 + xº.
28. If (23)2 = 44, then find the value of x3.
29. If (16)2x+3 (64)*+3, then find the value of 42x-2
3
81
30. If
then find the value of x.
3
16
X
2x
2
2
2
then find thejididjnc
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