Your mother said you can buy three boxes of Cracker Jacks. What is the probability that you will find one tattoo out of those three boxes? The probability of finding a tattoo in a single box of Cracker Jacks is .20.
Solution:
Given, "p=0.20,q=0.80,n=3"
"X\\sim Bin(n,p)"
"P(X=1)=\\ ^3C_1(0.20)^1(0.80)^2=3(0.2)(0.64)=0.384"
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