Step-by-step explanation:
11+11+9 equals 30 just do the math it simple
So to find the mean you add up all the numbers (or the exam scores) which will get you 212 then you take the number and divide it by the total numbers in the set (how many numbers did you add up?)
212 divided by 8 is 26.5 which would be C. I hope this helps!
Y=-8/2x+5
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