MoonN414199 MoonN414199

31-10-2022
Mathematics

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Question: for the data shown in the scatter plot which is the best estimated of r?A.-0.95B. -0.55C. 0.55D. 0.95

Question for the data shown in the scatter plot which is the best estimated of rA095B 055C 055D 095 class=

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CasynI738451 CasynI738451

31-10-2022

The graph shows what it seems a certain correlation between x and y, with negative slope.

So the value of r should be negative but not very close to -1.

Answer: The best estimate of r is -0.55 (Option B).

NOTE: the approximate value of r is r=-0.624.

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