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17 Cards in this Set

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statistical question
A question that anticipates there will be different answers.
data distribution
How data values are arranged.
mean
The sum of the values in a data set divided by the number of values in the set. Also, called average.
outlier
An extreme value with few data points located near it.
range
The difference between the greatest and least numbers in a data set.
average
Also called the mean.
mode
The data value that occurs the most often in a data set.
median
The middle value in a data set that is in numerical order.
frequency table
A table which shows the number of times a data value or range of values occurs in a data set.
histogram
A graph that uses bars to show to show the frequency of equal ranges or groups of data.
box plot
A diagram that shows a distribution of data values above a number line.
quartiles
Values that divide a data set into four equal parts.
absolute deviation
The distance between each data point and the mean.
interquartile range (IQR)
A measure of variability that is the difference between the third quartile and the first quartile.
mean absolute deviation (MAD)
The mean of the absolute deviation.
dot plot
A number line long enough to encompass all numbers in a data set, showing a dot over the position corresponding to each number.
box and whisker plot
A diagram using a number line to show the distribution of a set of data. It displays the median, upper and lower quartiles, and the minimum and maximum values of the data.