Forest Fires and Acres Burned Numbers (in thousands) of forest fires over the year and the number (In hundred thousands) of acres burned for 6 recent years are shown.

Number of fires x: 47, 84, 62, 72, 69, 58

Number of acres burned y: 19, 26, 51, 15, 42, 26.

The correlation coefficient for the data is r=0.034 and a=0.01.

1. Should regression analysis be done? .

2. Find the equation of the regression line. y'=a+bx

a=

b=

3. Find y' when x=70.