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3 years ago

13

If the r-value, or correlation coefficient, of a data set is 0.934, what is the

1 answer:

Andreas93 [3]3 years ago

6 0

.872

To find the coefficient of determination, simply square the r-value (r^2).

(.934)^2 = .872356

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Help me find Sample variance and standard deviation

AnnZ [28]

First, find the mean. You'll need it to compute the variance.

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$s^2=\displaystyle\dfrac1{5-1}\sum_{i=1}^5(\bar x-x_i)^2=\dfrac{(21-11)^2+\cdots+(11-11)^2}4=\dfrac{71}2=35.5$

The standard deviation is the square root of the variance, so

$s=\sqrt{35.5}\approx5.958$

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steposvetlana [31]

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2 years ago

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ivann1987 [24]

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2 years ago

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