Find the indicated probability. Round as indicated.In a certain college, 20% of the physics majors belong to ethnic minorities. If 10 students are selected at random from the physics majors, what is the probability that exactly 2 belong to an ethnic minority? Estimate the probability to five decimal places if necessary.
A. 0.30199
B. 0.00007
C. 1.8
D. 0.00671
Answer: A
Mathematics
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Use a power regression model for the following data to answer the following question. If x is increased by 37%, what is the effect on y? x 1 3 4 7 8 y 13.11 3.36 2.19 1.04 1.22?
A. y is increased by 31.68%. B. y is increased by 4.33%. C. y is decreased by 4.33%. D. y is decreased by 31.68%.
Mathematics
Find the least common denominator (LCD).
, 
A. (x - 6)(x - 1)(x - 5) B. (x + 1)(x - 5) C. (x + 6)(x + 1)(x - 5) D. (x + 6)(x + 1)
Mathematics
Verify the identity.sin (x + y) - sin (x - y) = 2 cos x sin y
What will be an ideal response?
Mathematics
Simplify, if possible.
A. 
B. 
C. 
D. 
Mathematics