what is 0 + 0 + -2 + -2 +2 + -2 = ........ is it integer? why or why not ? PLS SHOW WORKKK HURRY PLS HELP ASAP
2 answers:
You might be interested in
Answer:
I hope it helps .in case you don't understand any part ,feel free to ask.
Answer: A. 85.7
Step-by-step explanation:
Given : Two sections of a class took the same quiz.
Section A had 15 students who had a mean score of 80, and Section B had 20 students who had a mean score of 90.
We know that ,
Then , for section A :
Similarly in Section B,
Total scores = Sum of scores in sec A+Sum of scores in sec B
=1200+1800=3000
Total students = Students in sec A +Students in sec B
=15+20=35
Now , the mean score for all of the students on the quiz =
Hence, the approximate mean score for all of the students on the quiz = 85.7
Thus , the correct answer is option A. 85.7.