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Algebra II Quiz VII Vocabulary
N/A
9
Mathematics
10th Grade
03/18/2009

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Term
statistics
Definition
numerical values used to summarize and compare sets of data
Term
measure of central tendency
Definition
a number used to represent the center or middle of a set of data values
Term
mean
Definition
of n numbers is the sum of the numbers divided by n; denoted by xbar
Term
median
Definition
the middle number when the numbers are written in order (if n is even, the median is the mean of the two middle numbers)
Term
mode
Definition
the number or numbers that occur most frequently
Term
measure of dispersion
Definition
a statistic that tells you how dispersed data values are
Term
range
Definition
the difference between the greatest and least data values
Term
standard deviation
Definition
you better know that formula!!!
Term
outlier
Definition
a value that is much greater than or much less than most of the other values in a data set
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