AXISHK
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binomial random variable
Consider a binomial random variable X ~ Bi(n,∅).
We can get P(x) and P(x+1) as below but how to solve question 1 & 2 ?
P(x) = nCx . ∅ x (1- ∅)n-x
p(x+1) = nC x+1 . ∅ x-1 (1- ∅) n- (x+1)
Thx.
We can get P(x) and P(x+1) as below but how to solve question 1 & 2 ?
P(x) = nCx . ∅ x (1- ∅)n-x
p(x+1) = nC x+1 . ∅ x-1 (1- ∅) n- (x+1)
Thx.
ASKER
Sorry for missing the attachment. Thx
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How did you get x -1 in the second line ?
Why do you have a P in the first line , and a p in the second line?