Data in the following table list the numbers of female medical school graduates for selected years 2006–2014.

a) Without using the regression feature on a graphing calculator, model the data with a linear function where the number of female medical school graduates W is a function of the year x and where x is the number of years after 2006. Then using this function, estimate the number of female graduates in 2013. Answers may vary depending on the data points used.

b) Using a graphing calculator, fit a regression line to the data and use it to estimate the number of female medical school graduates in 2013. What is the correlation coefficient for the regression line? How close a fit is the regression line?

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Year, x 2006, 0 2008, 2 2010, 4 2012, 6 2014, 8 Female Medical School Graduates in the United States, W 7748 7969 8133 8291 8576