Give an appropriate answer.A statistics student takes a poll of residents at a local retirement home to find out which presidential candidate the sample of residents favors. Based on her results, she makes a prediction about which candidate will win the election. Comment on the fairness of her prediction. What might she do to improve her poll?
What will be an ideal response?
Her poll may be biased. In particular, it is probably biased towards that portion of the population that is old. To improve the poll, she must poll persons in other age ranges and in different circumstances of employment and education.
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Solve the problem.The probabilities that Hank will sell 0, 1, 2, or 3 cars this week are .15, .60, .24, and .01. Distribute the two-digit random numbers from 00 through 99 among these four possibilities so that the corresponding random numbers can be used to simulate the number of cars Hank sells in a week.
A. 00 - 14, 15 - 74, 75 - 98, and 99 B. 00 - 15, 16 - 75, 76 - 98 and 99 C. Not possible. D. None of the above is correct.
Find the exact value of the logarithmic expression.ln e9
A. 
B. 1
C. 9
D. e
Provide an appropriate response.Multiply and simplify: (t + 2s)(t - 2s)
What will be an ideal response?
Solve.log91 = x
A. x = 1 B. x = 81 C. x = 0 D. x = 9