Suppose 90 out of 120 people said they like to work out and 5 out of every 18 of the people who like to work out have a gym membership. at the same rate in a group of 216 people predict how many you would expect to have a gym membership.

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.

Find dy/dx using implicit differentiation ln(20+e^xy)=y

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way