Compute r, the linear coefficient of correlation, for the given data.The paired data below consist of the test scores of 6 randomly selected students and the number of hours they studied for the test.
A. -0.224
B. -0.678
C. 0.678
D. 0.224
Answer: D
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The lists below show five agricultural crops in Alabama, Arkansas, and Louisiana.AlabamaArkansasLouisianasoybeans (s)soybeans (s)soybeans (s) peanuts (p)rice (r)sugarcane (n)corn (c)cotton (t)rice (r)hay (h)hay (h)corn (c)wheat (w)wheat (w)cotton (t)Let U be the smallest possible universal set that includes all of the crops listed, and let A, K and L be the sets of five crops in Alabama, Arkansas, and Louisiana, respectively. Find each of the following sets.A' ? L
A. {h, p, w} B. {n, r, t} C. {c, n, r, s, t} D. {h, n, p, r, t, w}
Provide an appropriate response.A student tried to clear the fractions in
+ 
= -2
+ 
= 1by multiplying both fractions by zero. Is this an acceptable approach?
Fill in the blank(s) with the appropriate word(s).
Provide an appropriate response.In the right triangle shown, find the length of the missing side. 
A. 20 in. B. 24 in. C. 25 in. D. 17.5 in.
Perform the indicated operations. Write the answer in the form a + bj.(4 + 3j) - (-2 + j)
A. 6 + 2j B. 2 + 4j C. 6 - 2j D. -6 - 2j