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16 Nov 2021

Given information

given that, a random sample of ten professional athletes produced the following data where x is the number of endorsements the player has and y is the amount of money made (in millions of dollars).

We have to explain what does an r-value of zero mean.

Step-by-step explanation

Step 1.

The correlation coefficient r measures the strength and direction of a linear relationship between two variables on a scatter plot. The value of r is always between +1 and –1.

If,

  • r-value is positive, which means that there is a positive correlation.
  • r-value is negative, which means that there is a negative correlation.
  • r-value is zero, which means that there is no linear correlation.

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