15. a. The probability of rolling a 6 (a normal numbered cube) is 15. b. Assume that you are going to do 10 rolls of this numbered cubes and you are focused on the number of times the side with the six comes up. What is the probability of having exactly 8 sixes appear? 15. c. What is the mean and the standard deviation? 15 d. Using the words mean and standard deviation, explain (using your own words)why the probability in 15b is so small.

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