The following table provides a probability distribution for the random variable y. a. Compute E(y) (to 1 decimal). b. Compute Var(y) and a (to 2 decimals). Var(y) σ y 2 5 7 9 f(y) 0.20 0.30 0.30 0.20

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The following table provides a probability distribution for the random variable y.
a. Compute E(y) (to 1 decimal).
b. Compute Var(y) and a (to 2 decimals).
Var(y)
σ
SNS a
Y
2
5
7
9
f(y)
0.20
0.30
0.30
0.20
Transcribed Image Text:The following table provides a probability distribution for the random variable y. a. Compute E(y) (to 1 decimal). b. Compute Var(y) and a (to 2 decimals). Var(y) σ SNS a Y 2 5 7 9 f(y) 0.20 0.30 0.30 0.20
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