A bottle contains 6 1/2 fluid ounces of water. After you take a sip, the bottle is 3/5 full. How many fluid ounces are left in the bottle

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?