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Unit 1

Data displays and number systems

TermDefinition
Data- Information that is gathered by counting, measuring, questioning, or observing.
Statistics- The study of numerical data collecting, organizing, and analyzing data to interpret it and answer questions.
Variability How spread out the values in a set of data are.
Statistical question- A question that would be answered by collecting or analyzing data.
Range- The difference between the maximum and the minimum in a data set The range 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
Distribution the distribution of data typically takes into account the range and spread of a data set.
mode a type of average in a set of scores, values or numbers the mode is the one that occurs the most.
data landmark A notable feature of a data set. Some landmarks are the mean, median, mode, maximum, minimum, and range.
Minimum lowest or least amount or value
Median a type of average which is the middle value of an ordered set of data values
Average An average 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.
Created by: user-1846642
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