Question 10 Kevin bought dvds of different movies. He spent $5 for each movie. The equation y = 5x shows how much he spent for the movies. What does the dependent variable represent in this situation?
A
The number of minutes of the movie length
B
The number of movies he bought
The number of movies in the $5 movie bin
D
The cost of the movies

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.