deb64

29.06.2019 • 

Mathematics

99 points! plz lisa is not sure if m causes n, n causes m, or neither. in an attempt to come to a conclusion, she first plotted m on the x-axis, n on the y-axis, and used the linear regression feature of her graphing calculator. when she did this, she got a correlation coefficient (r) of 0.962 and a line with a slope of 2.3. she then plotted n on the x-axis, m on the y-axis, and used the linear regression feature of her graphing calculator. when she did this, she got a correlation coefficient (r) of 0.962 and a line with a slope of 0.4. which conclusion is the most valid? a) m causes n. b) n causes m. c) m might cause n, or n might cause m. d) m doesn’t cause n, and n doesn’t cause m.

Ответ:

kaelyynn752

29.05.2020

Mathematics

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The answer is C. M might cause N, N might cause M

Step-by-step explanation:

The slope of the line produced by Lisa’s graphing calculator has nothing to do with whether m causes n, n causes m, or neither (One exception to this would be if the slope were 0. This would imply no correlation, and thus, no causation.) Since the correlation coefficient (r) is 0.962 in both cases, a correlation probably exists between m and n. However, correlation does not imply causation, nor does it imply a lack of causation. Therefore, the conclusion of Lisa’s that is the most valid is m might cause n, or n might cause m.

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Ответ:

cool8844

28.05.2021

Mathematics

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B. Angle PRQ measures 75°.

Step-by-step explanation:

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