Q1. You reach your hand into a bag of Scrabble tiles. You pull out one tile and find it has letter A. You pull out one more tile. What is the probability that it will be a letter Z? Solution There is a chance that the first tile will be an A.But once you have that tile, there are only 25 left. So, the probability of the second tile being a Z = Q2. Sum of the probability of happening and not happening of an event is: 1) 1 2) 0 3) None of these 4) 2 Solution A probability of 0 means that an event is impossible and a probability of 1 means that an event is certain. Therefore, the sum of happening and not happening of an event = 1 Q3. A pair of dice was rolled 5350 times. A pair of 5's occurred 140 times. What is the empirical probability of a pair of 5's? Solution ...