From ages 6 through 10, Krysta grew one inch each year.
Does the relation of her height to her age represent a
function? If so, is it a linear function? Explain.

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.