Think of the situation of rolling two dice and let M denote the sum of the number
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Question:
Think of the situation of rolling two dice and let M denote the sum of the number of dots on the two dice. (So M is a number between 2 and 12.)
a. In a table, list all the possible outcomes for the random variable M together with its probability distribution and cumulative probability distribution. Sketch both distributions. (3 Marks)
b. Calculate the expected value and the standard deviation for M. (4 Marks)
c. Looking at the sketch of the probability distribution, you notice that it resembles a normal distribution. Should you be able to use the standard normal distribution to calculate probabilities of events? Why or why not? (4 Marks)
Related Book For
Statistics The Art And Science Of Learning From Data
ISBN: 9780321755940
3rd Edition
Authors: Alan Agresti, Christine A. Franklin
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