Question

Joe has an 37% probability of passing his statistics quiz 4 each time he takes it.

What is the probability he will take no more than 5 tries to pass it? a) 0 0.0587 b) O 0.9632 c) O 0.0992 d) 0.0367 e) O 0.9007 f)
ONone of the above

Answer 1

.37 + .63(.37) + (.63²)(.37) + (.63³)(.37) + (.63⁴)(.37) = .37(1 + .63 + .63² + .63³ + .63⁴)

= .37((1 - .63⁵)/(1 - .63)) = 1 - .63⁵ = .9008

The correct answer is e.