Question 1201897
p = .64
q = .36
n = 63
assuming this is a binomial distribution type problem, i get the probability that at least 35 of the 63 victims knew their murderers is equal to 0.935075905.
the formula for the binomial distribution type of problem is p(x) = p^x * q^(n-x) * c(n,x).
since the number of calculations were large (x = 35 to 63), i used excel to do the arithmetic for me.
the sum of all the probbilities (x = 0 to 63) was equal to 1, as it should be.