silvermansachs9189
01.08.2019 •
Mathematics
Suppose the line of best fit is being found for some data points that have an r-value of 0.793. if the standard deviation of the x-coordinates is 5.591, and the standard deviation of the y-coordinates is 2.772, what is the slope of the line to three decimal places?
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Ответ:
Explanation: If the given quantities are r-value (or Pearson's coefficient) and the standard deviations of x and y coordinates, we'll use the following formula for slope:
where:
m = slope of the best fit line
r = r-value = 0.793
= standard deviation of x-coordinates = 5.591
= standard deviation of y-coordinates = 2.772
So, the slope is calculated as follows:
Hence, the slope in 3 decimal places is 0.393.
Ответ:
Step-by-step explanation:
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