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Mathematics, 20.09.2021 14:00 vickye146

Class A has 19 pupils and class B has 18 pupils. Both classes sit the same maths test.
The mean score for class A is 77.
The mean score for both classes is 73.
What is the mean score (rounded to 2 DP) in the maths test for class B?

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Class A has 19 pupils and class B has 18 pupils. Both classes sit the same maths test.
The m...
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