2.2 Let the variable X have the binomial distribution, that is, p(x) = (") p*(q)"-*, x = 0,1,2,-,n If the mean of X is given to be u = np. Find E[X(X – 1)]. ii. Use results in (i) to find the variance of X. i.
2.2 Let the variable X have the binomial distribution, that is, p(x) = (") p*(q)"-*, x = 0,1,2,-,n If the mean of X is given to be u = np. Find E[X(X – 1)]. ii. Use results in (i) to find the variance of X. i.
Chapter5: Exponential And Logarithmic Functions
Section5.5: Exponential And Logarithmic Models
Problem 4ECP
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![2.2 Let the variable X have the binomial distribution, that is,
p(x) = (") p*(q)"-*, x= 0,1,2, -- ,n
If the mean of X is given to be µ = np.
Find E[X(X – 1)].
Use results in (i) to find the variance of X.
i.
ii.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F32e3e6d3-08c6-47dd-b0fc-968450285203%2F5645bba6-fcd4-4887-8b19-f1d46d639a8a%2Fdhe3pa_processed.jpeg&w=3840&q=75)
Transcribed Image Text:2.2 Let the variable X have the binomial distribution, that is,
p(x) = (") p*(q)"-*, x= 0,1,2, -- ,n
If the mean of X is given to be µ = np.
Find E[X(X – 1)].
Use results in (i) to find the variance of X.
i.
ii.
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