Which measure of central tendency would you use for the following variables (mean, median or mode). Explain your choice. Gender: _______________________________________________________ Class rank at a college: __________________________________________________ Age of high school students: ________________________________________
Which measure of
Gender: _______________________________________________________
Class rank at a college: __________________________________________________
Age of high school students: ________________________________________
A skewed income distribution (90% with incomes under $150K; a few with incomes of several million):
The measures of central tendency includes mean, median and mode.
Mean is obtained by dividing the sum of the observations to the number of observations.
Median is the average of the middle most observations.
Mode is most repeated value in the data set.
Mean and median is mostly applicable to quantitative variables and mode is applicable to qualitative variable.
For categorical variables or qualitative variables, mode is the best measure.
For skewed type of distributions, median is the appropriate measure.
For normal distribution, mean is the best measure.
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