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The table below gives the marks scored by a group of students in an exam.

The table below gives the marks scored by a group of students in an exam.

(a) Given that the mean mark was 32.125, find x.
(b) State the modal class.
(c) Calculate the interquartile range.

Answers

sharon kalunda answered the question on May 9, 2019 at 09:28

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