Question

About 30.2% of the students at NC State are left handed. If 20 students are picked at random, find the probability that exactly 8 are left handed. Round answer to tenthousandth.

Answer 1

Step-by-step explanation:

To solve the question, we will use the binomial probability function

In our case

`\begin{gathered} p=30.2\text{ \%=0.302} \\ q=1-p=0.698 \\ x=8 \\ n=20 \end{gathered}`

Thus, we will have

`20C8*0.302^8*0.698^(20-8)=0.1166`

Thus, the answer is 0.1166