What is the length of the third side of the window frame below? (5 points) the first side is 78 and second side is 72
answers are:
30 inches
36 inches
50 inches
75 inches

in counting the number of heads in 4 coin flips, the probability that we get exactly one head is the probability that we get anyone of the following 4 outcomes: httt, thtt, ttht, or ttth. each has probability 1/16, so the probability to get exactly one head in 4 flips is 1/16 + 1/16 + 1/16 + 1/16 = 4/16 = 1/4.