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secondary 4 | E Maths
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Could you all show me the working how to do
Date Posted: 6 years ago
Views: 326
Take the middle value of each category.
For example :
For the category of 0 ≤ t ≤ 10,
Take 5s.
So total time for this category
= 5 s per student x 6 students
= 30 s.
Do the same steps for each of the other
categories.
Then add up the time for all the categories.
Then divide it by the total number of students.
For example :
For the category of 0 ≤ t ≤ 10,
Take 5s.
So total time for this category
= 5 s per student x 6 students
= 30 s.
Do the same steps for each of the other
categories.
Then add up the time for all the categories.
Then divide it by the total number of students.
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