SOLUTION: Let 𝑝(𝑥)=(𝑥+3)15 𝑓𝑜𝑟 𝑥=1,2,3 be a probability mass function of X. Calculate: i. P (X ≤ 2) (2 marks) ii. E(X) and (2marks) iii. 𝜎𝑥 (2 marks

SOLUTION: Let 𝑝(𝑥)=(𝑥+3)15 𝑓𝑜𝑟 𝑥=1,2,3 be a probability mass function of X. Calculate: i. P (X ≤ 2) (2 marks) ii. E(X) and (2marks) iii. 𝜎𝑥 (2 marks

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Question 1153910: Let 𝑝(𝑥)=(𝑥+3)15 𝑓𝑜𝑟 𝑥=1,2,3 be a probability mass function of X.
Calculate:
i. P (X ≤ 2) (2 marks)
ii. E(X) and (2marks)
iii. 𝜎𝑥 (2 marks

Answer by ikleyn(52818) (Show Source): You can put this solution on YOUR website!
.

How the probability can be greater than 1 ?

Meanwhile, according to your formula, it is so, at given values of x.

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