Annual Measurements of the Number of Powerboat Registrations (In Thousands)

Short Answer

Annual measurements of the number of powerboat registrations (in thousands) and the number of manatees killed by powerboats in Florida were collected over the 14 years 1977-1990. A scatterplot of the data, least squares regression line, and correlation coefficient follow.
-Fill in the blanks with the appropriate values to interpret the y-intercept:
We predict ___(1)____ manatee deaths when there are ____(2)____ powerboat registrations.