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No, its 9.36 because the question says the grades range from 2 to 10 so we have to include 2 for atleat a person whi failed too..
so max average possible is: (22×10+2×6+2×1)/25 = 9.36
- by susanaryal
Sat Jul 25, 2015 8:51 am- Forum: Problem Solving
- Topic: Arithmetic Mean(2)
- Replies: 6
- Views: 3428