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प्रश्न
Find the mean and median for the following:
3, 7, 12, 5, 8, 14, 7
योग
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उत्तर
Sum of observations = 3 + 7 + 12 + 5 + 8 + 14 + 7 = 56
Total number of observations = 7
Mean = `"Sum of observations"/"Total number of observations"`
= `56/7`
= 8
Arranging the numbers in ascending order,
3, 5, 7, 7, 8, 12, 14
n = 7 observations
Median = `(n + 1)/2`
= `(7 + 1)/2`
= `8/2`
= 4th
Median = 7
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