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Consider the Probability Distribution Below xf(x)10.220.330.440.1\begin{array} { c c } x & f ( x ) \\10 & .2 \\20 & .3 \\30 & .4 \\40 & .1\end{array}

Question 81

Multiple Choice

Consider the probability distribution below. xf(x) 10.220.330.440.1\begin{array} { c c } x & f ( x ) \\10 & .2 \\20 & .3 \\30 & .4 \\40 & .1\end{array} The variance of x equals


A) 9.165
B) 84
C) 85
D) 93.33

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