00:01
For this question, we have to use the possine distribution.
00:05
I'm going to define the random variable x here, and this is a poison distribution.
00:10
So for the posse on distribution, the mean value was given as 0 .5.
00:14
So i can just denote the mean value as, which is mu, so the mu, which is equal to 0 .5.
00:20
So what is the formula? let's remember the formula.
00:22
The probability of random variable x, which is equal to x, would be this is e to the power negative mu times mu to the power x divided by x factorial this is the formula that we have to use so what we have to do in this case we have to find the x random variable is greater than one and i can get this probability which is one minus so be careful if x is greater than one that means um this is equal to so the x is equal to zero and plus the x is equal to one here and the next thing i'm going to just in the values here, this is 1 minus.
01:03
When x is equal to 0, that would be this is e to the power negative 0 .5 and times 0 .5 to the power 0 over 0 factorial and plus e to the negative 0 .5 times 0 .5 to the power 1 and divided by 1 factor 0, which is equal to 1 minus.
01:24
So we have e to the power negative 0 .5 and plus this is e to the power negative 0 .5 .5...