Thursday, June 14, 2012

Remember for the Exam: Measure of Central Tendency

Measure of Central Tendency) A value that represents the centre of a data set.

(A data set is a group of numbers that you must arrange in order from least to greatest.)

Mean) The sum of a set of values divided by the number of values in the set.
Median) The middle number in a set of data after that data set has been arranged in order.
Mode) The most frequently occurring number in a set of data.

Range) The positive difference between the largest and smallest values in data.
Outlier) Value that is larger or smaller than the other data value. 
The data set might have more than one outlier or zero outliers.

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