Mathematics, 22.04.2021 14:20 nevaehkirk1997
Some pupils in two different classes take a test. There are 18 pupils in 7X1 and 26 pupils in 7Y1.
The mean mark for the pupils in 7X1 is 23. The mean mark for pupils in 7Y1 is 17.
Calculate the mean mark for the two classes combined.
Give your answer correct to 1 decimal place.
Answers: 1
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Some pupils in two different classes take a test. There are 18 pupils in 7X1 and 26 pupils in 7Y1....
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