00:01
In this given question we are having information about the local county.
00:10
Unemployment rate given here.
00:15
Unemployment rate is 7 .4 % and a random sample of 20 employees so our value for n will be equal to 20 picked up from the random from the county and they asked for they are employed and we need to answer the given questions.
00:39
So first part of the question is asking for find that exactly 2 in the population or the sample are unemployed.
00:51
So exactly 2 in this sample are unemployed.
01:11
So for finding this probability we will consider our value for probability for the event which is x is equal to 2.
01:21
And for finding all the four parts, we need to use the r software.
01:26
So i have placed here the screenshot of that software with the formula.
01:32
So here we can see i have placed here the formula bounded between 2 comma 2 and reason is between and size as we are having n is equal to 20.
01:43
So the probability calculated here and the graph is saying true.
01:47
This is for first part.
01:49
And here the output you can see the answer also...