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The numbers of visitors every hour in a shop from 1 p.m. to 8 p.m. on Monday were recorded as 7, 10, 15, 22, 6, 4 and 13. The arithmetic mean of visitors is:1. 132. 93. 104. 11 |
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Answer» Correct Answer - Option 4 : 11 Given: The numbers of visitors every hour in a shop from 1 p.m. to 8 p.m. on Monday were recorded as 7, 10, 15, 22, 6, 4 and 13. Formula used: Arithmetic mean = Average = Sum of values/Number of values Calculation: Sum of visitors = 7 + 10 + 15 + 22 + 6 + 4 + 13 = 77 Number of hours = 8 - 1 = 7 hours Arithmetic mean of visitors = 77/7 = 11 visitors/hour ∴ The arithmetic mean of visitors is 11. |
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