Answer to Question #305858 in Statistics and Probability for Gene

Question

The following data show the probability distribution of the number of speakers sold daily in an appliance shop during the past several months, X={0, 1, 2, 3, 4, 5} P(X)={.07, .18, .27, .19, .08, .21}, what is the probability that at most 4 speakers will be sold?

Answer 1

$P(X\le4)=1-P(X=5)=1-0.21=0.79.$