SOLUTION: Students in a physics class are required to complete at least 2 out of a collection of 8 lab projects. In how many ways can a student satisfy the requirement?

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Question 360495: Students in a physics class are required to complete at least 2 out of a collection of 8 lab projects. In how many ways can a student satisfy the requirement?
Answer by sudhanshu_kmr(1152) About Me  (Show Source):
You can put this solution on YOUR website!

total no. of ways = 2^8 - 8C0 - 8C1 (eliminate when one or none selection)

= 247