Assume that a sample of bivariate data yields the correlation coefficient, r, indicated. Use the critical values table for the specified sample size and level of significance to determine whether a linear correlation exists.r = 0.844 when n = 10 at ? = 0.01
A. No
B. Yes
Answer: B
Mathematics
You might also like to view...
Find the gradient field F of the function f.f(x, y, z) = x4e5x + y5z5
A. F = (4 + 5x)x3e5xi + 5y4z5j + 5y5z4k B. F = (4 + 5x)x3e5xi + 5y4j + 5z4k C. F = (1 + x)x3e5xi + y4z5j + y5z4k D. F = (4 + 5x)x3e5xi + (x4e5x + 5y4z5)j + (x4e5x + 5y5z4)k
Mathematics
Find the limit.
cos-1 x
A. 1 B. -1 C. 0 D. ?
Mathematics
Simplify. Express in terms of i.
A. 2i
B. -2
C. 2
D. -2i
Mathematics
Factor by grouping.10a3 - 6a2b + 25ab2 - 15b3
A. (10a2 + 5b2)(a - 3b) B. (2a2 + 5b2)(5a - 3b) C. (2a2 + 5b)(5a - 3b) D. (2a2 - 5b2)(5a + 3b)
Mathematics