Use the guidelines to evaluate the study. From the information given, what is the biggest flaw in the study?A researcher randomly selected 500 college students and asked "How many IQ points would you sacrifice to become better looking?". The following conclusion was published in the student newspaper "Students would sacrifice 18 IQ points to be better looking."
A. Selection bias
B. The source
C. Confounding variables
D. Participation bias
E. Variables are hard to define/measure
Answer: E
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Write the first four terms of the sequence.an = (-1)n - 1(8n - 5)
A. -3, 11, -19, -27 B. 3, -21, 19, -27 C. 3, 11, 19, 27 D. 3, -11, 19, -27
Express as a single logarithm and, if possible, simplify.logb 3x + 4(logb x - logb y)
A. 
B. logb 
C. logb (3x + x4 - y4)
D. logb 
Write in exponential form. Assume all variables are positive real numbers.-
A. -4481/2m3/2 B. -200,704m 2/3 C. 448m 2/3 D. -448m3/2
Solve.Tyler and his sister arranged a party for their father's birthday. The total cost of the party was 
Tyler paid 
of the total cost and his sister paid the remainder. How much did Tyler pay?
A. $390 B. $405 C. $400 D. $410