Need help with a probability problem that is causing me some difficulty.
A coin is tossed 8 times. What is the probability of more than six tails?
Thanks.
garrett88
Let H be heads and T be tails If you toss a coint eight times this is the possible ways you can get 1 head and 7 tails
{H,T,T,T,T,T,T,T}
{T,H,T,T,T,T,T,T}
{T,T,H,T,T,T,T,T}
{T,T,T,H,T,T,T,T}
{T,T,T,T,H,T,T,T}
{T,T,T,T,T,H,T,T}
{T,T,T,T,T,T,H,T}
{T,T,T,T,T,T,T,H}
There are a total of 8 ways
You could also use the formula for binomial prob
This gives the same answer.
I hope this clear it up.