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  3. The following are the marks in percentage of forty students in an examination. 15 27...

The following are the marks in percentage of forty students in an examination. 15 27...

The following are the marks in percentage of forty students in an examination.

15 27 17 16 38 13 12 48 37 12 52 36 46 28 64 24 27 26 36 15

28 38 39 47 36 15 57 39 29 42 82 6 5 45 44 39 58 23 36 28

Using an assumed mean of 50, calculate the mean and standard deviation of the marks.?
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Asked by Faiza on 22nd May, 2020
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