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Unit 1
Data Displays and Number Systems
| Term | Definition |
|---|---|
| Data | Information that is gathered by counting, measuring, questioning, or observing.D |
| 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 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. 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. • if more than one dot falls in the same position, they are stacked up. |
| Maximum | highest or greatest amount or value |
| Mode | a type of average. |
| Minimum | lowest or least amount or value. |
| Mediun | a type of average which is the middle value of an ordered set of data values. 2. a line that joins the vertex of a triangle to the midpoint of the opposite side. |
| Data Landmark | A notable feature of a data set. Some landmarks are the mean, mediun, mode, maximum, minimum, and range. |
| Distrabution | The arangment and freguency of data values in a data set. A distrabution may be summerized with measures of center and variability. |
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