This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: and p = .50, what is the expected value and standard deviation? np = npq = The above binomial distribution is close the normal distribution N(np, npq ), Thus we can use the normal approximation to estimate the probability p(x 322). Correction for continuity Assume that 60% of all voters favor candidate A. lf 50 voters are selected at random what is the probability that exactly 25 will favor candidate A.(use the normal approximation to the binomial) 25 25.5 24.5...
View Full Document