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प्रश्न
Find the mean of the following:
Even numbers lying between 11 and 31
योग
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उत्तर
Given: Even numbers lying between 11 and 31 = 12, 14, 16, 18, 20, 22, 24, 26, 28, 30
Step-wise calculation:
Sum = 12 + 14 + 16 + 18 + 20 + 22 + 24 + 26 + 28 + 30
= 210
Number of observations = 10
Mean = 210 ÷ 10
= 21
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