Use the guidelines to evaluate the study. From the information given, what is the biggest flaw in the study?You would like to know if the customers of your video store are satisfied. You hand a customer satisfaction questionnaire to every customer who comes into the store and ask them to fill it out and place it in a box after they check out. The questionnaire asks customers to rate their satisfaction on a scale of 1-10 with regard to the video selection and customer service.
A. Wording of the questions
B. Participation Bias
C. Selection Bias
D. Confounding variables
E. Setting may not encourage honest responses
Answer: B
Mathematics
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Find the special products using patterns.(p + 6q)(p - 6q)
A. p2 + 12pq - 36q2 B. p2 - 12pq - 36q2 C. p2 - 36q2 D. p2 - 12q2
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Solve the inequality. Write the solution set using interval notation and graph it.6x - 8 ? 5x - 15
A. (-?, -7]
B. (-?, 6)
C. [-7, ?)
D. (6, ?)
Mathematics
Use the leading-term test to match the function with the correct graph.f(x) = - 
x3 - 2x2 + 3x + 49
A. 
B. 
C. 
D. 
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Use I = Prt for simple interest to find the indicated quantity.P = $3000; t = 90 days; I = $105. Find r. (Use 360 days in a year.)
A. 3.5% B. 14.0% C. 9.7% D. 14.2%
Mathematics