The school production of 'our town' was a big success. for opening night, 388 tickets were sold. students paid $3.50 each, while non-students paid $5.50 each. if a total of $ 1584.00 was collected, how many students and how many non-students attended?
the number of students was
nothing. (simplify your answer.)
the number of non-students was
nothing. (simplify your answer.)

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?