9.

If a sample of 234 customers were taken from a population of 3620 customers, s2 could refer

to the variance of how many customers' ages?

A. 234

B. 3620

C. Both 234 and 3620

D. Neither 234 nor

3620

Ryan takes out a loan of $36,350 which earns 3% simple interest yearly. How much interest will he owe on the loan after 5 years?

Half the sum of x and y decreased by one-third y

Raina's fish tank has 16 liters of water in it. She plans to add 4 liters per minute until the tank has more than 48 liters. What are the possible number of minutes Raina could add water?

Suppose a 95% confidence interval for µ turns out to be (1,000, 2,100). To make more useful inferences from the data, it is desired to reduce the width of the confidence interval. Which of the following will result in a reduced interval width? A.

You and your friend get the same magazine. You spend $15 for twelve issues. Your friend pays $1.50 per issue but gets the first two issues free. How many issues will your friend get if he also spends $15?

Suppose that y varies directly with x and y = 5 when x = 6. What is y when x = 5?

What is the difference between 30% of 7 and 7% of 30?

Choose the equation that is equivalent to this statement. 90 is 70% of x.

3.8 divided by 2 estimated

Tom earn $12.50 per hour at the Yankee bowling alley. He regularly works 40 hours per week. He is paid time and a half for each hour overtime work. Last week he worked 42 hours that his gross pay for the week