The line of best fit, the regression line, is y = 0.1177 x+ 78.497,

where x = Years since 1990 = Birth Year - 1990 and y = U.S. female life expectancy, in years.

The value of r² is 0.9541

What is the value of the correlation coefficient, r (rounded to 4 decimal places)? Also, interpret its value: Looking at the graph and the size of r, do you judge the strength of the linear relationship to be very strong, moderately strong, somewhat weak, or very weak?