Which term is a term in this expression? -3x − 7(x + 4)

A.
-3
B.
-7
C.
-3x
D.
x + 4

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

0.32

step-by-step explanation:

2.24/7

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