A cell phone company wants to determine the average amount of data that their smart phone customers use each month. Which group would best represent a sample of the population ?

Which equation matches the graph shown ?

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.

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.