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# math vocab 22-24

### for quiz on monday

TermDefinition
Population the entire group of interest; samples are drawn from populations
Random Sample a sample in which every element in the population has an equal chance of being selected
Sample a part of a population
Data a set of collected information; often numerical information such as a list of measurements
Box Plot a visual display of a data set on a number line that shows the minimum, the lower quartile, the median, the upper quartile, and the maximum
Mean the sum of a set of values divided by the number of values
Median the middle number, or the halfway point between the two middle numbers, in an ordered set of values
Infer to conclude or decide something based on evidence
Range the difference between the greatest value (maximum) and the least value (minimum) in a data set
IQR the difference between the upper quartile and the lower quartile
MAD the sum of the distances of each data point from the mean of the data set divided by the number of data points. It has always been positive.
Variability how spread out or close together values in a data set are
Measure of Center a single number that summarizes what is a typical for all the values in a data set. Mean and median are measures of center.
Measure of Variability a single number that summarizes how much the values in a data set vary . MAD and IQR are measures of variability.
Created by: lesley_j
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