i have an event that i have calculated the probability to be .0017 what is the probability that this event happens exactly 2 out of 4 times? (assume independence)
Follow Math Help Forum on Facebook and Google+
Originally Posted by jjs2168 i have an event that i have calculated the probability to be .0017 what is the probability that this event happens exactly 2 out of 4 times? (assume independence) Exactly twice: $\displaystyle {4 \choose 2} (.0017)^2(1-.0017)^2$.
View Tag Cloud