Let X equal the weight in grams of a miniature candy bar Assume that E(X) 24 43 and 2 Var(X) 2 20 Let X be the sample mean of a random sample of n 30 candy bars Find (a) E(X) (b) Var(X) (c) P(24 17 X 24 82), Approximately ...

Let X equal the weight in grams of a miniature candy bar. Assume that = E(X)

Question:

Let X equal the weight in grams of a miniature candy bar. Assume that μ = E(X) = 24.43 and σ2 = Var(X) = 2.20. Let X be the sample mean of a random sample of n = 30 candy bars. Find
(a) E(X).
(b) Var(X).
(c) P(24.17 ≤ X ≤ 24.82), Approximately.