Solve the problem using your calculator.The paired data below consist of the test scores of 6 randomly selected students and the number of hours they studied for the test. Use linear regression to find a linear function that predicts a student's score as a function of the number of hours he or she studied.
A. y = -67.3 + 1.07x
B. y = 67.3 + 1.07x
C. y = 33.7 - 2.14x
D. y = 33.7 +2.14x
Answer: B
Mathematics
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A. 1 B. -6 C. 0 D. -5
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Solve the problem.The function Y(x) = 55.32 ln 
can be used to estimate the number of years Y(x) after 1980 required for a certain country's population to reach x million people. In what year will the country's population reach 9 million?
A. About 2037 B. About 2032 C. About 2022 D. About 2042
Mathematics
Solve the equation.x + 2 = 9
A. x = -11 B. x = -7 C. x = 11 D. x = 7
Mathematics
Find the unit price.32 party favors for $12
A. $1.50/party favor B. $2.67/party favor C. $0.50/party favor D. $0.38/party favor
Mathematics