What is the theoretical probability of being dealt exactly one ace in a 5-card hand from a standard 52-card deck?

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

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?

Someone me! if you’re smart you can solve this!