86,926 views
26 votes
26 votes
On a particular college campus, 22% of the students belong to a fraternity or sorority. If 56 college students are randomly chosen:a. What is the probability that 16 are members of a fraternity or sorority?Round to at least three decimal places.Incorrectb. What is the mean of this distribution? Round to at least one decimal.Incorrectc. What is the standard deviation of this distribution? Round to at least one decimal

User Sachin Gandhwani
by
2.9k points

1 Answer

11 votes
11 votes

Step-by-step explanation

Part A

From the question,


\begin{gathered} p=(22)/(100);q=1-(22)/(100) \\ p=0.22;q=0.78 \\ Also,n\text{ =56} \end{gathered}

Using the binomial probability distribution formula;


undefined

User DiegoNolan
by
3.4k points