Q. 114.3( 9 Votes )

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Answer :

This is a binomial distribution with n=6,


(i) We know,













(ii)

P(r≤ 5) = 1 - P(r=6)










OR


Given that


The sum of all probabilities of a random variable is equal to 1.


⇒ k+2k+3k+0=1

⇒ 6k = 1


Hence,

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