A dataset of n=20n=20n=20 points, ∑Xi=100\sum X_i = 100∑Xi=100, ∑Yi=200\sum Y_i = 200∑Yi=200, ∑Xi2=600\sum X_i^2 = 600∑Xi2=600, ∑XiYi=1100\sum X_i Y_i = 1100∑XiYi=1100. Find the OLS slope β^1\hat{\beta}_1β^1.
0.50.50.5
1.01.01.0
1.51.51.5
2.02.02.0