The students in Class A and in Class B take the same examination.
There are 28 students in Class A and 32 students in Class B.
The mean score for all the students in both classes is 72.6
The mean score for the students in Class A is 75
Work out the mean score for the students in Class B.
The lowest score in Class A is 39
The range of scores for Class A is 57
The lowest score in Class B is 33
The range of scores for Class B is 60
Find the range of scores for all the students in both classes.
3 exam-style questions on Oxford AQA IGCSE Maths Data. Each one has a worked solution and a mark scheme showing where the marks go.