bobbiemaye5058 bobbiemaye5058

23-01-2024
Mathematics

contestada

Let X be a discrete random variable. The probability distribution of X is given below:

X : 30; 10; -10
P (X) : 1/5; 3/10; 1/2

Then E (X) is equal to
(A) 6
(B) 4
(C) 3
(D) – 5

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