You are throwing darts at a dart board. You have a 1/ 6 chance of striking the bull's-eye each time you throw. If you throw 3 times, what is the probability that you will strike the bull's-eye all 3 times?

Respuesta :

Cube 1/6

Answer: 1/216
Or 0.46% chance.

Answer: [tex]\dfrac{1}{216}[/tex]

Step-by-step explanation:

By binomial distribution formula:

[tex]P[X=r]=^nC_rp^rq^{n-r}[/tex] , where n is the number of trials , r is the number of success, p is the probability of success and q is the probability of failure.

Given: The probability of striking the bull's eye = [tex]p=\dfrac{1}{6}[/tex]

The probability of not striking the bull's eye = [tex]q=1-\dfrac{1}{6}=\dfrac{5}{6}[/tex]

Number of throw, n=3

Number of success, r=3

Now, the probability that you will strike the bull's-eye all 3 times is given by :-

[tex]P[X=r]=^3C_3(\dfrac{1}{6})^3(\dfrac{5}{6})^{3-3}\\\\=\dfrac{1}{216}[/tex]