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Class A has 11 pupils and class B has 20 pupils. Both classes sit the same maths test. The mean score for class A is 74. The mean score for class B is 32. What is the mean score…

Class A has 11 pupils and class B has 20 pupils. Both classes sit the same maths test. The mean score for class A is 74. The mean score for class B is 32. What is the mean score…
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21 votes
Class A has 11 pupils and class B has 20 pupils.

Both classes sit the same maths test.
The mean score for class A is 74.
The mean score for class B is 32.
What is the mean score (rounded to 1 DP) in the maths test across both classes?

asked
User Tirath
by
7.6k points

1 Answer

2 votes

Answer:

11(74)+20(32)=1454

1454÷31=46.9

answered
User StackOverlord
by
8.1k points
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