# Question

Let X be a random variable having expected value μ and variance σ2. Find the expected value and variance of

Y = X - μ / σ

Y = X - μ / σ

## Answer to relevant Questions

Find Var(X) if P(X = a) = p = 1 − P(X = b) Let X be a uniform (0, 1) random variable. Compute E[Xn] by using Proposition 2.1, and then check the result by using the definition of expectation. Every day Jo practices her tennis serve by continually serving until she has had a total of 50 successful sent If each of her serves is, independently of previous ones, successful with probability .4, approximately what is ...(a) A fire station is to be located along a road of length A, A < ∞. If fires occur at points uniformly chosen on (0, A), where should the station be located so as to minimize the expected distance from the fire? That is, ...Consider Example 4b of Chapter 4, but now suppose that the seasonal demand is a continuous random variable having probability density function f. Show that the optimal amount to stock is the value s∗ that satisfies F(s∗) ...Post your question

0