A researcher desires to know if age of a child is related to the number of cavities he or she has. Table below shows the data. c. Determine the regression line equation if r is significant. d. Predict...

A researcher desires to know if age of a child is related to the number of cavities he or she has. Table below shows the data. c. Determine the regression line equation if r is significant. d. Predict the number of cavities for a child of 11.
Age, x 6. 8 9. 10 12 14 No. of cavities, y 4 3 5 6.