Respuesta :

Answer:

The probability of getting exactly 3 head=0.3125

Step-by-step explanation:

Given that probability of getting head p=0.5

So probability of getting tail q=0.5

Number of coin toss n=6

And number of trial r=3

We know that from Binomial distribution function,the probability given as follows

 [tex]P=_{r}^{n}{p^rq^{n-r}}[/tex]

So now by putting the values

[tex]P=_{3}^{6}\times {0.5^3\times 0.5^{6-3}}[/tex]

Now by solving this

The probability of getting exactly 3 head=0.3125