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

  

Answers


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


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