Ben spins a biased coin twice. The probability that it will come down heads both times is 0.36

What is the probability that it will come down tails both time?

Is it 1 - 0.36 = 0.64

Printable View

- Mar 18th 2011, 04:51 PMNatasha1Biased coin
Ben spins a biased coin twice. The probability that it will come down heads both times is 0.36

What is the probability that it will come down tails both time?

Is it 1 - 0.36 = 0.64 - Mar 18th 2011, 05:49 PMalexmahone
- Mar 18th 2011, 06:39 PMQuacky
- Mar 18th 2011, 10:56 PMCaptainBlack
Let $\displaystyle $$p$ be the probability that the coin comes down heads on a single flip. Then the probability that it comes down heads on two consecutive flips is:

$\displaystyle p^2=0.36$

The probability that it comes down tails on two consecutive flips is: $\displaystyle (1-p)^2$.....

and the rest is algebra

CB