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Find the mean, variance and Standard deviation for the following dat a class10-20 20-30 30-40 40-50 50-60 1.5 13 . frequency 6,15,13,7,9 |
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Answer» 35 is the MEAN. Step-by-step explanation: 10+20+20+30+30+40+40+50+50+60 = 350 _____________________________ ___ 10 10 =35 This is RIGHT answer. |
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