Describe the strength and direction of the linear correlation.
A. Strong negative linear correlation
B. Little or no linear correlation
C. Weak positive linear correlation
D. Weak negative linear correlation
Answer: C
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Let A and B be sets with cardinal numbers, n(A) = a and n(B) = b, respectively. Decide whether the statement is true or false.n(A ? B) = n(A) - n(B)
A. True B. False
Factor out the greatest common factor.72x8y9 + 36x2y5 + 81x5y2
A. 9x2y2(8x6y7 + 4y3 + 9x3) B. 9(8x8y9 + 4x2y5 + 9x5y2) C. x2y2(72x6y7 + 36y3 + 81x3) D. 9x2(8x6y9 + 4y5 + 9x3y2)
Use graphical methods to find all real solutions to the following equation. Express solutions rounded to the nearest hundredth.x4 - 9x2 + 20 = 0
A. {-1, 2.71, -2.71} B. {5, -5, 4, -4} C. {2.24, -2.24, 2.00, -2.00} D. {2.24, 2.00}
Use a calculator to convert 100°10' to radians. Round your answer to the nearest hundredth. (First convert to decimal degrees, then multiply by the appropriate conversion factor to convert to radians.) ?
A. 1.77 B. 1.75 C. 1.71 D. 1.81 E. 1.83