Question

A coin is tossed 8 times. What is the probability of getting exactly 6
heads?

Answer 1

Explanation:

Using binomial distribution,

`p=\left(\begin{array}{c} 8\\ 6\end{array}\right)*((1)/(2) )^6*((1)/(2) )^2\\\\\\=(8*7*6*5*4*3)/(6*5*4*3*2*1) *(1)/(256) =(28)/(256) =(7)/(64) \\\\`