document.write( "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? \n" ); document.write( "
Algebra.Com's Answer #770450 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! What is the probability there are 0 seniors and subtract that from 1. \n" ); document.write( "there are 28 non seniors and 12 seniors \n" ); document.write( "the number of ways to choose 6 from 40 is 40C6 \n" ); document.write( "the numerator is 28C6*12C0, and 12C0=1 \n" ); document.write( "so it is 1-(28C6/40C6)=0.9018 \n" ); document.write( " |