Solve the problem.The average life (in months) of an automobile battery is 4 months. If the battery life is exponentially distributed, find the probability that the life of a randomly selected battery is greater than 6 years.
A. 0.0558
B. 0.1942
C. 0.2231
D. 0.7769
Answer: C
Mathematics
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Find the standard deviation. Round to one more place than the data.
A. 3.0 B. 0.9 C. 1.5 D. 2.7
Mathematics
Find the median.The number of vehicles passing through a bank drive-up line during each 15-minute period was recorded. The results are shown below. Find the median number of vehicles going through the line in a fifteen-minute period.25 27 25 2828 25 30 2735 31 31 2924 31 25 2015 27 27 27
A. 26.85 B. 28 C. 27 D. 31
Mathematics
Find the function value.Let f(x) = 
x. Find f(3).
A. 
B. 
C. 
D. 216
Mathematics
Find the outside surface area, when ?a? = 4, ?h? = 6.
?
?
__________ in2
Fill in the blank(s) with the appropriate word(s).
Mathematics