Question

Every page in a certain book has a probability of .02 of having an error on it. If forty pages are examined, what is the probability of there being exactly two pages with errors on them?

Answer 1

Would the answer be 1-binomcdf (40, .02, 2) = .045???

Answer 2

you want a pdf, not cdf

Answer 3

so instead, you're going to type this

binompdf(40, 0.02, 2)

Answer 4

so, the answer would then be .006?

Answer 5

no

Answer 6

oh, I see my error. mistype in calculator - it's .144

Answer 7

yep

Answer 8

thanks!!

Answer 9

np