Krispy Kreme is considering building a franchise in a particular city. It will use a survey to determine the extent of interest among residents of the city. Which of the following procedures would be most appropriate for obtaining a statistically unbiased sample?
A. Survey a selection of people who are listed on the residential roll sheets of the city.
B. Survey a random selection of customers coming out of other donut shops in the city.
C. Survey a selection of people whose names are randomly chosen from the telephone directory of the target city.
D. Survey a random selection of people whose names are obtained from national sales records of Krispy Kreme customers.
E. none of the above procedures would be most appropriate.
Answer: A
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Use the preference table to answer the question.Four students are running for president of their dormitory: Debra (D), Farah (F), Jorge (J), and 
The votes of their fellow students are summarized in the following preference table.
Who is declared the new president using the Borda count method?
A. Farah B. Hillary C. Debra D. Jorge
Solve the problem.The cost of an appliance is $400 and the customer is offered a trade-in allowance of $150. Sales tax of 4.79% is charged on the price of the new appliance. Find the final cost to the customer after his trade-in.
A. $169.16 B. $269.16 C. $261.98 D. $230.84
Evaluate.If f(x) = x3 - 3x2 + 5x + 3, find f(-4).
A. -40 B. -129 C. 11 D. -132
Divide and simplify.
÷ 
A. 
B. 
C. 
D. 