Solve the system by substitution. check your solution.
a- 1.2b = -3
0.25 +0.6a = 12
a. (15, 15)
b. (10, 12)
c. (13, 12)
d. (7,9)
select the best answer from the choices provided
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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?