Consider the probability distribution for the random variable x shown here. Complete parts a through c below.
x |
30 |
40 |
50 |
60 |
70 |
80 |
|
---|---|---|---|---|---|---|---|
p(x) |
0.05 |
0.20 |
0.30 |
0.20 |
0.10 |
0.15 |
a. Calculate μ,σ2,and σ.
μ=__________(Type an integer or a decimal. Do not round.)
σ2=__________(Type an integer or a decimal. Do not round.)
σ=____________(Round to three decimal places as needed.)
Consider the probability distribution for the random variable x shown here. Complete parts a through c...
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Let x be a random variable with the following probability distribution Value x of x P(X=x -10 0.05 0 0.20 10 0.30 20 0.20 30 0.10 40 0.15 E (x)= Var (x)=
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The random variable x has the following discrete probability
distribution. Complete parts a through f
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