3 years ago

How do you calculate the average mark?

Mathematics

1 answer:

Lubov Fominskaja [6]3 years ago

6 0

Answer:

68.44%

Step-by-step explanation:

You compute the average the way you compute any average: add up the numbers and divide by their number.

Multiplication is a useful way to shorten the effort of repeated addition.

(64% × 3 + 58% × 7 + 88% × 3 +33% + 100% × 2)/(3 +7 +3 + 1 + 2)

= 1095%/16 = 68.4375%

≈ 68.44% . . . the average mark for the class

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