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Arithmetic mean of marks (out of 25) sco...

Arithmetic mean of marks (out of 25) scored by 10 students was 15. One of the student, named Karishma enquired the other 9 students and find the deviations from her marksare noted as-8,-6, -3,-1, 0, 2, 3, 4, 6.Find Karishma’s marks.

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The correct Answer is:
`15.5` marks
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