You and two friends visit a pizza shop. there are 15 toppings. 5 toppings are meat and the rest are vegetable. each of you orders a different topping (no repeats) at random. what is the probability that your group orders only meat toppings?

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?