# Question

With reference to Exercise 3.87 on page 106, find the mean and the variance of the random variable V.

## Answer to relevant Questions

The following are some applications of the Markov inequality of Exercise 4.29: (a) The scores that high school juniors get on the verbal part of the PSAT/ NMSQT test may be looked upon as values of a random variable with ...Find the expected value of the random variable X whose probability density is given by If X is a binomial random variable, for what value of θ is the probability b(x;n,θ) a maximum? Prove Theorem 5.5. Theorem 5.5 b*(x;k,θ) = k/x. b(k;x,θ) Verify the expression given for E[X(X – 1)] in the proof of Theorem 5.7.Post your question

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