Identify the type of sampling described by the proposal.A travel industry researcher interviews all of the passengers on five randomly selected cruises.
A. simple random sample
B. convenience sample
C. stratified sample
D. cluster sample
E. systematic sample
Answer: D
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Find the infinite sum accurate to three decimal places.
A. -0.859 B. 0.859 C. -0.320 D. 0.460
Complete the following for the given f(x). (i) Find f(x + h). (ii) Find the difference quotient of f and simplify.f(x) = 2x - 11
A. (i) 2x + h - 11 (ii) 2 B. (i) 2x + 2h - 11 (ii) -2 C. (i) 2x + 2h - 11 (ii) 2 D. (i) 2x + 2h - 11 (ii) 11
Find the unknown value in the percent proportion 
Round to the nearest tenth, if necessary.part = 29, whole = 29
A. percent = 200% B. percent = 0% C. percent = 1% D. percent = 100%
Suppose that in the loan described, the borrower made a larger payment, as indicated. Calculate (a) the time needed to pay off the loan, (b) the total amount of the payments, and (c) the amount of interest saved, compared with the original loan and payments.$140,000; 8% compounded quarterly; 15 quarterly payments; with larger payment of $20,000.
A. (a) 7 quarters (b) $140,000 (c) $16,657.32 B. (a) 7 quarters (b) $130,248.91 (c) $16,560.32 C. (a) 8 quarters (b) $146,841.23 (c) $16,592.32 D. (a) 8 quarters (b) $160,000 (c) $16,715.32