show your solution

These data were obtained from a sample of countries in southwestern Pennsylvania and indicate the number (in thousands) of tons of coal produced in each country and the number of employees working in coal production in each country. Tons of coal (X) Number of employees (Y) 227 110 5410 731 5328 1031 147 20 729 118 8095 1162 635 103 6157 752 4. A. What is the value of "a" in hundredths place? B. What is the value of "b" in hundredths place? C. What is the regression line equation? D. Predict the number of employees needed to produce 500 (in thousand) tons of coal