A deck of cards consists of 13 cards in each of 4 suits, for a total of 52 cards. Douglas selects a card at random from the deck, puts it back in the deck, and selects another card at random. What is the probability that both cards are of the same suit. A. 1/2
B. 1/4
C. 1/8
D. 1/16

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?