1. A pearson correlation has a value of r=-0.69.what is the coefficient of determination?Round your answer to the second decimal place. please enter 2 digits after the decimal point.
2. ?A researcher is studying the relationship between drinking diet soda and sleepiness. He calculates the Pearson correlation and ascertains a correlation coefficient of r = +0.55. How much of the variability in sleepiness is explained by the amount of diet soda consumed?
? A. 42.25%
? B. 30.25%
????? ??C. 80.25%
????? ??D. 43.25%
3. for the following scores
A sketch a scatter plot and estimate the Pearson correction
B. Complete the following table: SX?? SY?? SXY??? SSX?? SSY?????? SP
C. Estimate of Pearson correlation
D. Compute the Pearson correlation.
4. A set of pairs of scores (and values) produces a regression equation of. Find the predicted value for each of the following scores: 0, 1, 3, ?2.
1. A pearson correlation has a value of r=-0.69.what is the coefficient of determination?
Round your answer to the second decimal place. please enter 2 digits after the decimal
This question was answered on: Sep 18, 2020
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