Answer:
The value that best approximates the correlation coefficient is r=0.50
Step-by-step explanation:
we know that
The correlation coefficient r measures the strength and direction of a linear relationship between two variables. Are expressed as values between +1 and -1
Using a Excel tool (Correl function)
see the attached table
the correlation coefficient is r=0.45
so
The value that best approximates the correlation coefficient is r=0.50
