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If the mean of this data is 95, find the missing data. 103,99,90,86,105,96,___
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If the mean of this data is 95, find the missing data.

103,99,90,86,105,96,___

User Latsha
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1 Answer

4 votes
The mean is the average of the numbers: a calculated "central" value of a set of numbers. To calculate: Just add up all the numbers, then divide by how many numbers there are. We can calculate the missing data by using this definition. We do as follows:

mean = 95 = (103 + 99 + 90 + 86 + 105 + 96 + x ) / 7
x = 86
User Gillespie
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