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) = 4x-5; [1, ?)
A. 0.50
B. 0.23
C. 0.32
D. 0.29
Answer: C
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Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the 
. y = - 5x + 10, y = 5x, x = 0
A. 150? B. 10? C. 25? D. 50?
Find all numbers that must be excluded from the domain of the rational expression.
A. x ? -4 B. x ? 0 C. x ? -6 D. x ? 4
Assume that, at a certain college, 33% of all physics majors belong to ethnic minorities. Given a random sample of 10 physics majors, find the probability of the indicated event. Round your answer as appropriate.Only the first 2 and the last 2 belong to an ethnic minority.
A. .00107 B. .1089 C. .09046 D. .01186
Solve the problem.How many arrangements of answers are possible in a multiple-choice test with 9 questions, each of which has 3 possible answers?
A. 19,683 B. 504 C. 84 D. 60,480