Find the probability to the nearest hundredth that the random variable of the probability density function has a value greater than the mean.f(x) = 
- 
; [2, 6]
A. 0.55
B. 0.54
C. 0.50
D. 0.46
Answer: A
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Evaluate the function.f(x, y) = 3x + 7y - 6; find f(8, 2).
A. 38 B. 29 C. 25 D. 32
Find the effective yield for the investment. Round to the nearest hundredth of a percent. Use a 365-day year. ? 4%, compounded quarterly ?
A. 4.07% B. 4.06% C. 4.16% D. 4.04% E. 4.08%
Does the problem involve permutations or combinations? Do not solve.A club elects a president, vice-president, and secretary-treasurer. How many sets of officers are possible if there are 14 members and any member can be elected to each position? No person can hold more than one office.
A. permutations B. combinations
Find the x-value of all points where the function has relative extrema. Find the value(s) of any relative extrema.f(x) = 
A. Relative minimum of - 
e-1 at e-1/3
B. Relative minimum of 
e at e1/3
C. Relative maximum of 0 at 0; relative minimum of 
e at e1/3
D. Relative minimum of 0 at 0