Find the mean, variance and standard deviation for the probability distribution given below: X -1 4 11 10 P(X) 0.587 0.106 0.205 0.102 A. Mean = B. Variance = C. Standard Deviation =
Added by Magdalena Z.
Step 1
To find the mean, we need to multiply each value of X by its corresponding probability and then sum the results. Mean = (-1)(0.587) + (4)(0.106) + (11)(0.205) + (10)(0.102) Mean = -0.587 + 0.424 + 2.255 + 1.02 Mean = 3.112 Show more…
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