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Sports and Leisure An assistant football coach at a Division II school helps his team prepare for the next opponent by charting plays. He looks at game films and records the down distance (first, second, or third down, and a categorical measure of the number of yards needed for a first down) and type of play (rush or pass), to look for tendencies. The two-way table below shows the number of plays that fall into each category. (Fourthdown plays are not charted, because they usually involve a punt or a field-goal attempt.)
Suppose this table represents the true tendencies of the next opponent.
a. What is the probability that the opponent rushes the ball?
b. Suppose the opponent has a first down. What is the probability of a pass?
c. Suppose it is a first or second down. What is the probability that the opponent rushes the ball?
d. Suppose the opponent passes the ball. What is the probability that it is a third down?
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Normal 0 false false false EN-US X-NONE X-NONE correlation coefficient for th..
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Compute a 99% confidence interval for μ if the average for randomly selected 20 heat pumps is 4.85 and the standard deviation of all heat pumps is known to be 0.75.
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