For the following Probability distribution E(x) is equal to: X -4 -3 -2 -1 0 P(X) 0.1 0.2 0.3 0.2 0.2

CA Foundation · Quantitative Aptitude · MTP · June 2024
For the following Probability distribution E(x) is equal to: X -4 -3 -2 -1 0 P(X) 0.1 0.2 0.3 0.2 0.2
(A) A. 0
(B) B. -1
(C) C. -2
(D) D. -1.8

Suggested Answer and Working Notes:

Correct Answer: Option (D)

D. -1.8

Topics: Part-C: Statistics

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