12 The length, 1 metres, of a garden is 78.5 metres, correct to the nearest 0.5metre. Find the upper and lower bound of the length 1. Upper Lower​

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 = f