(a) for these data, birthrates that are greater than the mean of the birthrates tend to be paired with female life expectancies that are???? The mean of the female life expectancies. (b) according to the regression equation, for an increase of one (birth per 1000 people) in birthrate there is a corresponding decrease of how many hears in female life expectancy?

Might we be able to predict life expectancyes from birthrates? Below are bivariate data giving birthrate and life expectancy information for each of twelve countries. For each of the countries, both x, the number of births per one thousand people in the population, and y, the female life expectancy (in years), are given. Also shown are the scatter plot for the data and the least-squares regression line. The equation for this line is y = 82.19-0.48x. Birthrate, x Female life expectancy, y (number of births per 1000 people) (in years) 25.5 74.9 42.0 80- 66.5 30.4 63.9 75- X 12.3 74.7 70 45.9 58.9 65- Female life expectancy X (in years) 34.3 65.2 60- X 18.9 71.7 49.6 52.7 X 50_ 27.6 71.2 14.7 75.0 35 6 45 56 54 49.4 61.0 Birthrate 50.5 59.1 (number of births per 1000 people) Send data to calculator v Based on the sample data and the regression line, complete the following. (a) For these data