Prob/stat Ch. 2
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| class | quantitative or qualitative category that raw data is placed into
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| frequency | number of data values that are contained in a particular class
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| frequency distribution | organization of raw data in table form, using classes and frequency
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| class width | distance between consecutive lower limits and consecutive upper limits -- found by subtracting the lower or upper limit (boundary) from the one above -- do not subtract the lower limit of one class from the upper limit of the same class
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| class limits | span of values that can be put into specific categories. Nominal or Ordinal
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| class boundaries | boundary of each class limit (Ex. class limit = 100-104, boundary = 99.5-104.5
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| midpoint formula | Xm = (lower limit + upper limit) / 2
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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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Created by:
kendragrundy
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