# Question: Let X equal the forced vital capacity the volume of

Let X equal the forced vital capacity (the volume of air a person can expel from his or her lungs) of a male freshman. Seventeen observations of X, which have been ordered, are

(a) Find the median, the first quartile, and the third quartile.

(b) Find the 35th and 65th percentiles.

(a) Find the median, the first quartile, and the third quartile.

(b) Find the 35th and 65th percentiles.

## Answer to relevant Questions

In the expression for gr(y) = G’r(y) in Equation 6.3-1, let n = 6, and r = 3, and write out the summations, showing that the “telescoping” suggested in the text is achieved. In equation 6.3-1 Let X1, X2, . . . , Xn be a random sample of size n from a normal distribution. (a) Show that an unbiased estimator of σ is cS, where (b) Find the value of c when n = 5; when n = 6. (c) Graph c as a function of n. What is ...In some situations where the regression model is useful, it is known that the mean of Y when X = 0 is equal to 0, i.e., Yi = βxi + εi where εi for i = 1, 2, . . . , n are independent and N(0, σ2). Let X1, X2, . . . , Xn be a random sample from a Poisson distribution with mean λ > 0. Find the conditional probability P(X1 = x1, . . . , Xn = xn | Y = y), where Y = X1 + · · · + Xn and the nonnegative integers x1, x2, ...Let X have the pdfPost your question