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Census
Collection of data from every member of a population

Sample
A selected part of a population

Parameter
A measured characteristic of a population

Statistic
A measured charcteristic of a sample

Bar graph
A graph that uses bars to represent and compare data

Data
Facts, numbers,or numerical information

Frequency Table
A table that organizes data into intervals

Histogram
A graph where data is organized into equal intervals

Mean
The sum of all values in a data set divided by the number of values

Median
The middle value in a data set when the values are written in numerical order. If a data set has an even number of values, the median is the mean of the two middle values

Mode
The value in a data set that occurs most often. A data set can have no mode, one mode, or more than one mode

Range
The difference of the greatest value and the least value in a data set


