SOLUTION: 15% of the U.S. is left handed. You randomly select 10 people and let x represent the number of left handers. How do you find the probability that exactly 8 are left-handed?

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Question 1037973: 15% of the U.S. is left handed. You randomly select 10 people and let x represent the number of left handers. How do you find the probability that exactly 8 are left-handed?
Answer by Edwin McCravy(20055)   (Show Source): You can put this solution on YOUR website!

Binomial, n=10 trials, probability of 1 success in 1 trial = p=15% = 0.15,

What is the probability of r=8 successes

nCx*pr(1-p)n-r

10C8*(0.15)8(1-0.15)10-8

10C8*(0.15)8(0.85)2

8.332598145×10E-6
8.332598145×10-6
0.000008332598145

Edwin
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