Question

Anyone good with Bernoulli Trials???? Assume that the coin is weighted so that a tail is 3 times as likely as a head. The coin is flipped 9 times. What is the probability that both heads and tails occur?___________________?

Answer 1

\[1-\left(\left(\frac{3}{4}\right)^9+\left(\frac{1}{4}\right)^9\right)=\frac{60615}{65536} \]

Answer 2

Thank you so much

Answer 3

I have tons of these