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The following table shows the distribution of marks obtained by 50 students of Matare Secondary School.

The following table shows the distribution of marks obtained by 50 students of Matare Secondary School.

(a) By using an assumed of 62, calculate:
(i) The mean
(b) The variance
(c) The standard deviation

Answers

sharon kalunda answered the question on April 26, 2019 at 13:46

Answer Attachments

Next: A and B are two points on the latitude 40⁰N. The two points lie on the longitude 20⁰W and 100⁰E respectively.

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