SOLUTION: A sample of 6 different kids is randomly selected from a group 40 high school students. If 12 of the students in the group are Seniors, what is the probability that there is at le
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Question 1149126: A sample of 6 different kids is randomly selected from a group 40 high school students. If 12 of the students in the group are Seniors, what is the probability that there is at least one Senior in your sample? Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! What is the probability there are 0 seniors and subtract that from 1.
there are 28 non seniors and 12 seniors
the number of ways to choose 6 from 40 is 40C6
the numerator is 28C6*12C0, and 12C0=1
so it is 1-(28C6/40C6)=0.9018
