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katovenus [111]
3 years ago
13

(2, 12), (4, 7), (5, 4) Will the correlation coefficient for these data points be positive or negative?

Mathematics
1 answer:
maw [93]3 years ago
8 0
(2,12)  , (4,7)  -> coefficient is negative, because the x-coordinate is increasing and y-coordinate is decreasing

(4,7),  (5,4)  ->  coeficien is negative too - look above
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Answer:

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Step-by-step explanation:

Noting the squared term, it makes sense to substitute for that term:

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<em>Solutions derived from that substitution</em>

Factoring gives ...

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Murrr4er [49]

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<em />

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Dividing both sides by 3, we find that <em>x = 27</em>.

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