00:01
So if i have one question per one and a half minutes, and thinking about per hour, so i have 60 minutes in an hour, and if i do 60 divided by 1 .5, i can answer 40 questions for every one hour.
00:31
For our first probability, probability that the employee is idle, i'm going to do p equals 1.
00:41
Minus 25 people per hour, over 40 questions per hour.
00:48
We'll get 0 .375.
00:55
For the probability that the employee is busy, 25 minutes over, excuse me 25 questions, over 40 questions per hour, 0 .625.
01:11
For the probability or the average number of people receiving and waiting, we're gonna do the number of people.
01:19
Over the number of questions minus the number of people.
01:28
So we'll have 25 over 40 minus 25, get 0 .6 repeating.
01:38
For the average number of people in line, we'll do pretty much the same thing.
01:43
So number of people squared this time, times number of questions, times number of questions minus number of people...