The table below shows the marks scored by eighty Form 4 students in a mathematics test.

The table below shows the marks scored by eighty Form 4 students in a mathematics test.


a) Calculate
i) Mean mark.
ii) Lower quartile

b) On the grid provided draw the cumulative frequency curve to represent the above
distribution

c) From the graph estimate the
i) 4th decile
ii) Range of marks of the middle 70% of the students.

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Wilfykil answered the question on September 12, 2019 at 06:51

Exams With Marking Schemes

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