Find the indicated probability. Round your answer to 6 decimal places when necessary.In one town, 64% of adults have health insurance. What is the probability that 8 adults selected at random from the town all have health insurance?
A. 0.028147
B. 5.12
C. 0.64
D. 0.125
Answer: A
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Find the limit, if it exists.
A. 0
B. 3
C. 3
D. Does not exist
Solve the problem.A data set consists of 113 test scores. Over a long period it has been found that the mean and standard deviation for these scores are known and that the scores are normally distributed. How many scores within this data set should lie within two standard deviations of the mean? Round your answer to the nearest whole number.
A. 108 B. 77 C. 113 D. 54
Provide the requested response.If the point (-1, 9.1) lies on the graph of f, then f( __ ) = ___ .
A. f(0) = 9.1 B. f(-1) = 0 C. f(-1) = 9.1 D. f(9.1) = -1
Solve the problem.Ariel, a marine biologist, models a population P of crabs, t days after being left to reproduce, with the function 
. Assuming that this model continues to be accurate, when will this population become extinct? (Round to the nearest day.)
A. 547 days B. 707 days C. 1512 days D. 911 days