Question

Each if the 24 students in Mr. Macons class flipped 3 coins. How many students would you expect to get 3 heads.

Answer 1

Solution

$n=24$

The probability of getting 3 heads from 3 coins is

$p=\frac{1}{8}$

The expected value will be

$\begin{gathered} E(X)=24\times\frac{1}{8} \\ \\ E(X)=3 \end{gathered}$

The answer is 3 students