hello bestie I'm actually a bit confused, is that your grades/marks? or also just an example? but whatever gonna answer this na lang.
when we're going to find the MEAN that's the very basic one bijj! you just need to add all the numbers from your 1st quarter like on the example then divide it into n, and the n is equal to 8
1ST QUARTER ANSWER
Mean = 89+89+90+89+85+91+86+86
8
= 705
8
= 88.125
2ND QUARTER ANSWER
Mean = 88+87+90+89+86+90+88+85
8
= 703
8
= 87.875
