00:01
Hi, i'm david and i'm here to help you answer the question.
00:04
Now let me bring up your question here.
00:06
In the question we'll discuss about the possum distribution.
00:10
Let me remind you that if we have the x followed by the possum with the mean equal to the lambda and then the probability x equal to k equal to e bar minus lambda, lambda power k, over k factorial.
00:28
In this question here, x equal to the number of the accident per day and then it will follow by the possum with the lambda it will equal to the 3 now the question i asked us to find the probability that 3 or more accident occur per day so it means that x will be greater equal to the 3 and in it to compute this probability we will turn the 1 minus probability the x -money equal to the 2.
01:06
Now we will rewrite the probability here to be a summation.
01:13
K goes from 0 to the 2.
01:15
And by the formula, lambda equal to 3.
01:19
So we have e -bath minus 3, 3 power k over k factorial.
01:25
And it will compute this probability you get equal to greater equal to 3...