a. On average, how many men should the researcher expect to check before finding one who is colorblind? b. What's the probability that she won't find anyone who is colorblind among the first 4 men she asks? c. What's the probability that the first colorblind man found will be the 6th man checked? d. What's the probability that she finds someone who is colorblind before checking the 7th man?

Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter14: Counting And Probability
Section14.3: Binomial Probability
Problem 26E
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About 8% of males are colorblind. A researcher needs colorblind subjects for an experiment
and begins checking potential subjects.
a. On average, how many men should the researcher expect to check before finding one
who is colorblind?
b. What's the probability that she won't find anyone who is colorblind among the first 4
men she asks?
c. What's the probability that the first colorblind man found will be the 6" man checked?
d. What's the probability that she finds someone who is colorblind before checking the
7th man?
Transcribed Image Text:About 8% of males are colorblind. A researcher needs colorblind subjects for an experiment and begins checking potential subjects. a. On average, how many men should the researcher expect to check before finding one who is colorblind? b. What's the probability that she won't find anyone who is colorblind among the first 4 men she asks? c. What's the probability that the first colorblind man found will be the 6" man checked? d. What's the probability that she finds someone who is colorblind before checking the 7th man?
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