Which of the expressions are equivalent to the one below? Check all that apply.
10 • (3+4)
A. (10.3) + 4
B. (3+4)10
I C. 10.3 + 10.4
O D. 10. (4+3)

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?