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प्रश्न
Find the mean of: 12, 9, 6,11 and 17
उत्तर
Mean of 12, 9, 6,11 and 17
Required mean = `"Sum of data values"/"No. of. data values"`
`= (12 + 9 + 6 + 11 + 17)/5`
`= 55/5 = 11`
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