The default rate on government-guaranteed student loans at a certain private 4-year institution is 7 percent. The college extends 10 such loans. (a) What is the probability that none of them will default? (b) That at least three will default? (c) What is the expected number of defaults?

Average salary for a medical assistant is $31,220 which is a 20% income tax bracket how much money would they pay in income tax?

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

Eric drove 275 miles in 5 hours. at the same rate how long would it take him to drive 495 miles?