Question 3. Confidence Let X, be identically and in ance σ = 0.2. Suppose 16 samples are taken and 3.3 is its sample mean. Find the following probabilities (a) p (F-1 1.59%) (b) Suppose now N samples...
1. Let X be a normal random variable with mean 16. If P(X < 20) 0.65, find the standard deviation o. 2. The probability that an electronic component will fail in performance is 0.2 Use the normal approximation to Binomial to find the probability that among 100 such components, (a) at least 23 will fail in performance. X 26) (b) between 18 and 26 (inclusive) will fail in performance. That is find P(18 3. If two random variables X and...