The histograms represent the probability distributions of the random variables X and Y. Determine by inspection which probability distribution has the larger variance. Answer a or b.

Mathematics

Two denominators are given. Find the LCD.7m, 28m

A. 33m B. 32m C. 25m D. 29m E. 27m F. 28m

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Mathematics

Find the gradient field of the function.f(x, y, z) = x8y10 +

A. ?f = 8x⁷y¹⁰i + 10x⁸y⁹j - k
B. ?f = i + 10x⁸y⁹j - k
C. ?f = (8x⁷ + 5x⁴)i + 10y⁹j - k
D. ?f = (8x⁷ + 5x⁴)i + 10y⁹j + k

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Mathematics

Factor as completely as possible. If unfactorable, indicate that the polynomial is prime.32a4b - 98b3

A. 2b(4a + 7b)2 B. (8a + 14b)(4ab - 7b2) C. 2b(4a - 7b)2 D. 2b(4a2 + 7b)(4a2 - 7b)

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Mathematics

Answer the question.Dimitri walked a distance of 2 miles to deliver a storage box. He stopped every mile to rest. How many times did Dimitri stop?

A. 6 times B. 5 times C. 7 times D. 9 times

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Mathematics