Given a binomial distribution with n = 8 and p = 0.40, what is the mean? Statistics Binomial and Geometric Distributions Calculating Binomial Probabilities 1 Answer 1s2s2p Dec 14, 2017 #E(X)=mu=3.2# Explanation: The mean (#mu#), or expected value (#E(X)#) for a binomial distribution #X~B(n,p)# is given by: #E(X)=mu=np# So, the mean is #np=8*0.4=3.2# Answer link Related questions Why do we have to use "combinations of n things taken x at a time" when we calculate binomial... Question #3a8c6 What defines a binomial distribution? What is a binomial distribution? What is the difference between binomial distribution and Poisson distribution? What is the probability of getting 7 heads and 7 tails with 14 coin flips? What is the general formula for the variance and mean of a binomial distribution? What is the standard deviation of a binomial distribution with n=10 and p=0.70? What is the difference between a normal and binomial distribution? What is the variance of a binomial distribution for which n = 75 and p = 0.20? See all questions in Calculating Binomial Probabilities Impact of this question 3214 views around the world You can reuse this answer Creative Commons License