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Data
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Unit 1

Data Displays and Number Systems

TermDefinition
Data Information that is gathered by counting, measuring, questioning, or observing.
Statistics A question that would be answered by collecting or analyzing data.
Variability How spread out the values in a set of data are.
Statistical Question The study of numeral data: collecting, organizing, and analyzing data to interpret it and answer questions.
Range The difference between the maximum and the minimum in a data set. It is a measure of how spread out a distribution is.
Dot Plot A number line long enough to encompass all numbers in a sample, showing a dot over the position corresponding to each number.
Maximum Highest or greatest amount or value.
Minimum Lowest or least amount or value.
Distribution The arrangement and frequency of data values in a data set. It may be summarized with measures of center and variability.
Mode The value of values that occur most often in a data set.
Data Landmark A notable feature of a data set. Some are the mean, median, mode , maximum, minimum, and range.
Median A type of average which is the middle value of an ordered set of data values.
Average It is a measure used to find the location of the middle (central tendency) of a data set.
Mean Usually called the average and may be called the arithmetic mean.
Balance Point It is the mean
Measure of Center A value representing what is typical or central to a data set.
Outlier A value far away from most of the rest in a set of data.
Histogram A graph using bars to represent frequency distribution where, bar heights represent the score frequencies and there are no spaces between the bars.
Bin An interval for collecting, aggregating, organizing, or graphing data.
Cluster Numbers which tend to crowd around a particular point in a set of data values.
Positive Numbers A number that is greater than zero.
Integer A whole number or the opposite of a whole number, where 0 is its own opposite.
Counting Numbers The numbers used to count things.
Whole Numbers The counting numbers, together with 0.
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