The expected number of heads in 90 tosses of an unbiased coin is: $$\begin{array} { | l | l | }
\hline \text { A. } & 30 . \
\hline \text { B. } & 45 . \
\hline \text { C. } & 50 . \
\hline \text { D. } & 60 . \
\hline
\end{array}$$

Question

The expected number of heads in 90 tosses of an unbiased coin is: $$\begin{array} { | l | l | } 
\hline \text { A. } & 30 . \
\hline \text { B. } & 45 . \
\hline \text { C. } & 50 . \
\hline \text { D. } & 60 . \
\hline
\end{array}$$

Quizplus · Accepted Answer

The Answer of The expected number of heads in 90 tosses of an unbiased coin is: $$\begin{array} { | l | l | } 
\hline \text { A. } & 30 . \
\hline \text { B. } & 45 . \
\hline \text { C. } & 50 . \
\hline \text { D. } & 60 . \
\hline
\end{array}$$

The Expected Number of Heads in 90 Tosses of an Unbiased