Which expression is equivalent to −(4−3) ? a. −3−2^2 b. −2^2+3 c. −2^2−3 d. −3+2^2

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