1/3 of all students bring lunch
2:3 is the ratio of students who bring their lunch to the number of students who do not
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!
Yes very because if you use the wrong one your whole formula will turn out wrong
Answer: sorry I also need help with this
Step-by-step explanation:
