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Module 7: Data

Interpreting and analyzing data

TermDefinition
Interquartile Range (IQR) Difference between quartile 3 and quartile 1. It also measures the spread of the data.
Quartile 1 The middle number between the smallest value and the median of the data set. Also known as lower quartile.
Mean average; the sum of all values in the set divided by the amount of numbers given in the data set.
Median middlemost number in a set of data
Mode number most often used in a set of data
Range difference between the highest value and lowest value in a set of data
Quartile 3 The middle number between the median and the highest value of the data set. Also known as the upper quartile.
Outliers data value way higher or way lower than most of the numbers in a data set
Symmetrical shape of a graph when most of the data values are grouped in the middle around the mean and tail off equally to both sides
Skewed when data is off to the right or off to the left
Skewed Left the graph has a tail to the left side (lower values)
Skewed Right the graph has a tail to the right side (higher values)
Standard Deviation A measure of how spread out numbers are
Created by: kgrismer
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