Let (N1,N2,...,Nm) be distributed as Multinomial(n,p1,p2,...,pm). (a). the conditional covariance between Ni and Nj for i, j ≤ r given (N(r+1), . . . , Nm) (b). an appropriate approximation to the probability that N1 is larger than 65 when N = 100 and p1 = 0.25

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.