The marks scored by 5 students in a test for 50 marks are 20, 25, 30, 35, 40. Find the
S.D for the marks. If the marks are converted for 100 marks, find the S.D. for newly obtained marks
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Answer:
20/50×100=40
25/50×100=50
30/50×100=60
35/50×100=70
40/50×100=80
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