Thread: basic probability

Hi guys,

Well,
can someone please show me how to solve the following:


12% of voters in a recent election voted on the greens candidate,
if 10 people were randomly selected
what is the probability that exactly 4 people voted for the green candidate.


thank you.

Originally Posted by hailwood

Hi guys,

Well,
can someone please show me how to solve the following:


12% of voters in a recent election voted on the greens candidate,
if 10 people were randomly selected
what is the probability that exactly 4 people voted for the green candidate.


thank you.

X ~ Binomial(n = 10, p = 0.12)

Calculate Pr(X = 4).