Number of positive approvals

Reference no: EM13985517

1. A car rental company ?nds that each day 6% of the persons making reservations will not show up. If the rental company reserves for 215 persons with only 200 automobiles, what is the probability that an automobile will be available for every person who shows up holding a reservation? (Use the normal approximation.)

2. The president of the United States is thought to have a positive approval rating of 58% of the people at a certain time. In a random sample of 1200 people, what is the approximate probability that the number of positive approvals will be at least 750? Interpret your results and state any assumptions.

Reference no: EM13985517

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