Find the expected value for the random variable. 9 12 15 18 21 0.14 0.24 0.37 0.18 0.07 Z P(z) E(z) = (Type an integer or a decimal.)

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Find the expected value for the random variable.
9 12 15 18
0.14 0.24 0.37 0.18
Z
P(z)
E(z) =
(Type an integer or a decimal.)
21
0.07
...
Transcribed Image Text:Find the expected value for the random variable. 9 12 15 18 0.14 0.24 0.37 0.18 Z P(z) E(z) = (Type an integer or a decimal.) 21 0.07 ...
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