Plz
sam has $1,000 to be distributed among two groups equally. later, the first part is to divide among 5 children and the second part is to divide among two brothers.

give the expression that represents how the money distribution between two groups was dispersed?

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?