Joe has ten close friends, four of whom attended the same college as he did. Joe...
Joe has ten close friends, four of whom attended the same college as he did. Joe will invite six of his friends to join him on a hike. What is the probability that he invites at least three of those he went to college with?
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Homework Answers
Joe has 10 close friends.
4 of them attended the same college as him.
Now , Joe invited 6 of his friends to join him on hike.
Now the sample space S = 
=210
We have to find the probability that atleast 3 to them from college.
Let , X = number of friends from college
Then we have to find ,
P(X >= 3)= 
+
/210
=0.45
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