# Question

With reference to part (b) of Exercise 8.52, find the covariance of Y1 and Yn.

## Answer to relevant Questions

Use the formula for the joint density of Y1 and Yn shown in Exercise 8.52 and the transformation technique of Section 7.4 to find an expression for the joint density of Y1 and the sample range R = Yn – Y1. Use the result of Exercise 8.58 to show that, for the random variable P defined there, What can we conclude from this about the distribution of P when n is large? A random sample of size n = 100 is taken from an infinite population with the mean µ = 75 and the variance σ2 = 256. (a) Based on Chebyshev’s theorem, with what probability can we assert that the value we obtain for X ...The actual proportion of families in a certain city who own, rather than rent, their home is 0.70. If 84 families in this city are interviewed at random and their responses to the question of whether they own their home are ...If S21 and S22 are the variances of independent random samples of sizes n1 = 10 and n2 = 15 from normal populations with equal variances, find P(S21 / S22 < 4.03).Post your question

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