A certain baseball player hits a home run in 7% of his at-bats. Consider his at-bats as independent events. Find the probability that this baseball player hits more than 42 home runs in 800 at-bats?
A) 0.93
B) 0.07
C) 0.0307
D) 0.9693

Question

Quizplus · Accepted Answer

The probability of hitting a home run is 0.07. The probability of not hitting a home run is 0.93. The probability of hitting more than 42 home runs in 800 at-bats is the same as the probability of hitting 43 or more home runs in 800 at-bats. This can be calculated using the binomial distribution:P(X >= 43) = 1 - P(X <= 42) = 1 - binomcdf(800, 0.07, 42) = 0.9693

A Certain Baseball Player Hits a Home Run in 7