Caryn eamed $5000 working part time as a cashier in a department store. She put her earnings into three different bank accounts. She put some of her money in a checking account paying 5% annual interest, some in a savings account paying 6%, and the rest in a 1-year certificate of deposit paying 7%. The accounts eamed simple interest. No additional money was deposited into or withdrawn from the accounts during the year, and the total interest at the end of the year was $325. If she invested 3 times as much at 6% as at 5%, find the amount she invested at each rate.

Acommunity group sells 2,000 tickets for its raffle. the grand prize is a car. neil and 9 of his friends buy 10 tickets each. when the winning ticket number is announced, it is found to belong to neil's group. given this information, what is the probability that the ticket belongs to neil? a.1/5 b.1/10 c.1/200 d.1/4

Find the amount in a continuously compounded account for the given condition. principal: $1000, annual interest rate: 4.8%, time: 2 yr

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.