Data and Statistics Mad

A distribution which has the data values evenly distributed throughout the range of the data.

A quantity that is calculated from sample data, such as the mean, median, or MAD (mean absolute deviation).

• statistic

• measure of variation

• standard deviation

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A data value that is unusual in that it differs quite a bit from the other values in the data set. .

• outlier

• statistic

• mean

• symmetric

A value that attempts to describe a set of data by identifying a central position of the data set (as representative of a "typical" value in the set). Ex: mean, median, mode.

• measure of center

• measure of variability

• statistic

• spread

A summary statistic that represents the amount of dispersion in a data set. It defines how far away the data points tend to fall from the center. Examples: IQR (interquartile range), MAD (mean absolute deviation), and standard deviation.

• measure of variability

• measure of center

• statistics

• IQR

The middle value in a list of numbers. Found by listing your data in numerical order, then locating the number in the middle.

The most common value in a set of data. Can be more than one number.

The statistic you get from subtracting the smallest data value from the largest data value.

A measure of variability based on dividing a data set into quartiles. Calculated by subtracting the first quartile from the third quartile.

The average distance between each data value and the mean. This is used to describe variation in a data set. It also helps us get a sense of how "spread out" the values in a data set are.