Based on the American chemical society there is a 0.8 probability that in the US a randomly selected dollar bill is tainted with choices of cocaine assume that 12 dollar bills are randomly selected round your answers to four decimal places  A. What is the probability that all of them have choices of cocaine  B. What is the probability that exactly 10 of them have choices of cocaine  C. What is the probability that no more than nine will have choices of cocaine

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Q: A test was given to a group of students. The grades and gender are summarized below   A B C Total…

A: A test was given to a group of students. The grades and gender are summarized.   A B C Total…