Data displays and number systems
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| Data | information that is gathered by counting, measuring, questioning, or observing.
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| Statistics | the study of numerical data: collecting, organizing, and analyzing data to interpret it and answer questions.
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| Variability | How spread out the values in a set of data are.
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| Statistical question | a question that would be answered by collecting or analyzing data
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| Range | the difference between the maximum and the minimum in the data set.
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| dot plot | a number line long enough to encompass all
numbers in a sample, showing a dot over the
position corresponding to each number.
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| Distribution | the distribution of data typically takes into account
the range and spread of a data set.
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| Data Landmark | a notable feature of data set some landmarks or the mean medium mode minimum and range
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| Maximum | maximum means highest or greatest amount or value
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| mode | in a set of scores, values or numbers the
mode is the one that occurs the most.
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| median | a line that joins the vertex of a triangle to
the midpoint of the opposite side.
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| Average | An average is a measure used to find the location of
the middle (central tendency) of a data set.
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| Mean | the mean is the total of all the scores or amounts,
divided by, how many scores or amounts there were.
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| Balance Point | Having the same weight (mass) on either side.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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