00:01
Let's solve this question.
00:02
In this question we have given from the data that is lambda is equals to 1 .9.
00:08
Now here we need to use a poisson's distribution.
00:12
So therefore we can write x is equals to x is equals to e raised to minus lambda multiplied by lambda raised to x divided by x factorial.
00:21
So here for the first part a we need to find the probability that you see exactly five armand de lowe wrote skills.
00:31
So therefore here probability of x is equals to five that can be given as by using the poisson's distribution here lambda that is equals to 1 .9 and x that is equals to five.
00:42
So therefore we will get e raised to minus 1 .9 multiplied by 1 .9 raised to five divided by five factorial.
00:49
So that is here we will get 0 .03086.
00:53
So this will be the required answer for the part a.
00:56
Now for the part b we need to find the probability that you see more than a three armand de lowe wrote skills while motoring hundred miles on the ronald reagan trump flight in the new york the day.
01:13
So therefore here we can write probability of x is greater than three.
01:18
So that is equals to we can write one minus probability of x is less than or equals to three.
01:23
So that is equals to one minus probability of x is equals to zero plus probability of x is equals to one plus probability of x is equals to three plus probability of x is equals to two...