Anormal distribution curve, where x = 70 and σ = 15, was created by a teacher using her students’ grades. what information about their performances can be obtained by analyzing the curve?

How much money does ron have left each month after his fixed expenses? ron graduated from college five years ago. he recently bought a house, but shares it with a housemate who pays him $800 a month for rent and utilities. ron is putting a budget worksheet together so he will have a better idea of where his money is going and where he can save. enlarge