I need help with this .. no clue whatsoever how to solve it. I suppose it should be easy, but I really don't know what to do. :/
"The mean score for 10 students on the chemistry final exam was 178. However, one teacher had made a mistake and recorded one student's score as ten points less than the actual score. What should the mean score be?"
Any help would be appreciated.. and yes, I know what mean is, just no clue how to solve this. (;
thanks. xx

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dam i forgot aout averages

what was mean average again?

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