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This is the Exam of Probability and Statistics which includes Three Numbers, Sample Mean, Median Income, Recipients, Everyday English, Approximately, Short Explanation etc. Key important points are: Random, Probability, Consecutive Triples, Expected Number, Tickets Drawn, Expected Number, Variance of The Number, Disease Randomly, Average, Number Afflicted
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Name:_______________________ SID:_______________________ Section:_______________________
Midterm Exam #3-Math 032-F ‘ Instructor: Devin Greene
The exam is 50 minutes long. No notes are permitted, but calculators are. Show your work.
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Fifty tickets labeled 1 through 50 are placed in a bowl. Twenty-five tickets are drawn at random without replacement.
a) What is the probability that tickets 1, 2, and 3 are among the 25 tickets drawn? b) Find the expected number of consecutive triples (like 1,2,and 3 or 5,6, and 7, etc.) among the 25 tickets drawn.
A rare disease randomly afflicts an average of 3 Americans per year. Approximate the probability that next year the number afflicted will be 0.
In poker, a flush occurs when all five cards belong to the same suit. Find the probability of drawing a flush from a shuffled 52-card deck.
