Aschool wants to make a new playground by cleaning up and abandoned lot that is shaped like a rectangle. they give the job of planning the playground to a group of students. the students decide to use 1/4 of the playground for a basketball court and 3/8 of the playground for a soccer field. how much is left for the swings and play equipment

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.