How many ways are there to get 2 wrong on a true and false 10 question quiz?

how does this affect all your answers?How many ways are there to get 2 wrong on a true and false 10 question quiz?
This is a binomial problem.





p (Correct) = 0.5


p (Incorrect) = 0.5





p (2 Incorrect) = (10C2) * ((0.5)^2) * ((0.5)^8)





You can work that out on a calculator... Don't have one with me at the mo...How many ways are there to get 2 wrong on a true and false 10 question quiz?
45 ways

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