mean, median, mode review engr 1181 class 7. mean
TRANSCRIPT
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Mean, Median, Mode ReviewENGR 1181Class 7
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Mean
Definition: arithmetic average of a set of values
Equation: x =
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Mean Example10 9 8 5 10
4 3 3 7 2
8 1 6 5 8
= 5.6
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MedianDefinition: value that occurs in the middle of a set of data that has been arranged in numerical order
Note:
A data set that contains an odd # of values always has a median
For a data set that contains an even # of values, the average of the 2 middle values is the median
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Median Example
10 10 9 8 8 8 7 6 5 5 4 3 3 2 1
10 9 8 5 10
4 3 3 7 2
8 1 6 5 8
Arranged in decreasing order:
Median = 6
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Mode Definition: the number within a data set that
occurs with the highest frequency
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Mode Example10 9 8 5 10
4 3 3 7 2
8 1 6 5 8
Mode = 8