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OpenStudy (anonymous):
The mean of this data is 8. What two numbers could go in the blanks? 12, 4, 9, 13, 7, 11, 5, 2, __, __
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OpenStudy (anonymous):
to solve problems like this, multiply the desired mean by the number of data points. This should be the sum of all the data points. do you see why?
OpenStudy (anonymous):
so if you multiply 8 (desired mean) by 10 (number of data entries) and subtract 63 (the sum of all the data points) you get the sum of the data points that are not given
OpenStudy (anonymous):
the sum of the data points that are not given is 17, so the data points can be any two numbers that add to 17
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