posted by please help me! on .
Find the indicated binomial probabilities. Round to the nearest 3 decimal places.
In a local college, 20% of the math majors are women. Ten math majors are chosen at random.
1) What is the probability that exactly 2 are women?
2) What is the probability that 2 or less women are selected?
3) What is the probability that no women are selected?
4) Find the mean u
Here is the binomial probability function:
P(x) = (nCx)(p^x)[q^(n-x)]
n = 10
p = .20
q = .80 (q = 1 - p)
For 1), find P(2).
For 2), find P(0) + P(1) + P(2).
For 3), find P(0).
For 4), mean = np
I hope this will help get you started.