A regression analysis resulted in the following information regarding a dependent variable (y) and an independent variable (x).

n = 10
∑x = 55
∑y = 55
∑x2 = 385
∑y2 = 385
∑xy = 220
Refer to Exhibit. The point estimate of y when x = 20 is

1.9
2.0
3.31
4.-9