SOLUTION: A professor gives a weekly quiz with varying numbers of questions and uses a randomization device to decide how many questions to include. Let the random variable X=the number of q
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Question 729420: A professor gives a weekly quiz with varying numbers of questions and uses a randomization device to decide how many questions to include. Let the random variable X=the number of questions on an upcoming quiz. The probability distribution for X is given in the following table, but on probability is missing . What is the probability that X=30
Table
no. of questions, X - 10 15 20 25 30
probability - .05 .20 .50 .15 ? Answer by lynnlo(4176) (Show Source):
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