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Mathematics 7 Online
OpenStudy (anonymous):

The mean of 100 numerical observations is 47.83. What is the value of the sum of all 100 numbers

OpenStudy (anonymous):

Do i multiply this?

OpenStudy (amistre64):

how do you find a mean?

OpenStudy (amistre64):

\[\frac{\sum_{i=1}^{100}x_i}{100}=47.83\] so yes, to find the sum of the numbers, we can multiply both sides by 100

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