An above ground pool in the shape of a cylinder has a diameter of 18 feet and a height of 4.5 feet. if the pool is filled with water to 6 inches from the top of the pool, what is the volume, to the nearest cubic foot, of water in the pool?

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?