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Chapter 4: Q. 81 (page 292)
In a lottery, there are prizes of prizes of , and ten prizes of . Assuming that tickets are to be issued and sold, what is a fair price to charge to break even?
The reasonable price for a single ticket must be
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An intramural basketball team is to be chosen randomly from 15 boys and 12 girls. The team has ten slots. You want to know the probability that eight of the players will be boys. What is the group of interest and the sample?
A lacrosse team is selecting a captain. The names of all the seniors are put into a hat, and the first three that are drawn will be the captains. The names are not replaced once they are drawn (one person cannot be two captains). You want to see if the captains all play the same position. State whether this is binomial or not and state why.
Find the probability that a physics major will do post-graduate research for at most three years. = _______
In words, define the random variable X.
Jeremiah has basketball practice two days a week. Ninety percent of the time, he attends both practices. Eight percent of the time, he attends one practice. Two percent of the time, he does not attend either practice. What is X and what values does it take on?
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