.in a certain year, james put $600 in a bank at the end of march and $400 in the same bank at the end of june. the bank offer 3% per annum simple interest rate . find the total amount that james recieve from the bank at the end of december in that year.

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?