00:01
Hello.
00:03
So from the question we can deduce that this is the posom distribution question.
00:07
We've given the lambda to be 3.
00:13
That's the number of errors.
00:18
So let's look at the formula for using pousson distribution.
00:26
So we have probability of x equals x.
00:31
That is given by e to the negative lambda times lambda to the x over x factorial.
00:39
So now the first one is the probability of making 5 or more errors as x greater than or equal to 5.
00:58
This is the same as 1 minus the probability of x less than 5.
01:09
So this is going to be equal to 1 minus 4.
01:12
So for less than 5, we're going to have probability of x equals 0.
01:18
That's probability of x equals 1.
01:20
We have 2, we have 3, and then we have 4.
01:39
4.
01:45
So we just need to plug them in the formula.
01:50
So let's look at for x equals 0.
01:56
So when x equals 0, we have e to the negative 3 times 3 is 0.
02:07
We have 0 factorial.
02:10
When x is 1, we have e to the negative 3 times 3, 2 1.
02:16
Over 1 factorial.
02:19
And next is 2.
02:23
The negative 3 times 3 squared...