The mean mark for each student is calculated by summing their marks and dividing by the number of subjects.
For AA:
Mean=884+86+87+66+88+44+68+100=8623=77.875≈77.9
For BZ:
Mean=868+69+40+69+85+50+57+92=8530=66.25≈66.3
For CC:
Mean=873+71+36+72+92+42+83+99=8568=71≈71.0
The averages for the students are:
77.9,66.3,71.0,84.5,77.3
Sorting these values:
66.3,71.0,77.3,77.9,84.5
The median is the middle value:
Median=77.3
We need to find the mode for each subject by checking the frequency of each grade.
For AG:
Grades: 84,68,73,77,81(No mode)
For ENGA:
Grades: 86,69,71,86,79(Mode: 86)
For MATH:
Grades: 87,40,36,74,66(No mode)
For AA:
Mean=77.9
For BZ:
Mean=66.3
For CC:
Mean=71.0
Median=77.3
For ENGA:
Mode: 86
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