Question

Lian got the following grade in 6 subjects – 84.9, 86.16, 83.5, 84.28, 80.72 and 85.6. Find the average of her grades for the grading period.

Answer 1

Step-by-step explanation:

HER GRADES AS GIVEN ARE

84.9 ,86.16,83.5,84.28,80.72,85.6 = MARKS OF 6 SUBJECTS

SO NOW ADD ALL THE MARKS

THE SUM IS = 505.16

NOW AS TO TAKE OUT THE AVERAGE

DIVIDE THE TOTAL NUMBER OF MARKS/ NUMBER OF SUBJECTS

505.16/ 6

= 84.19

WHICH IS ROUNDED UP TO 84.2

SO THE AVERAGE IS

= 84.2

HOPE IT HELPED ! :)