If the Age of a tree was predicted to be 800 years old using the regression equation, y = 4.39x - 6.77, what did the Diameter have to be?

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c =