Chapter 3 & 4
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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| show | mode, median, and mean
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| show | summarize or reduce
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| show | mode
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| median can be found for _______________ data, but generally it more appropriate for ______________ data. | show 🗑
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| show | percentile
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| show | 50th
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| show | 10%
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| If you scored higher than the 3rd quartile (Q3) then you made __________________________ | show 🗑
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| show | mean (x bar)
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| show | the sum of (xi) / N
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| three characteristics of the mean: | show 🗑
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| show | mean is pt around which variation of score is minimized; if difference b/t scores and mean are squared and then added, the resultant sum will be less than the sum of the squared differences b/t the scores and any other point in the distribution
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| show | least squares principle
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| distributions with outliers have a ___________: | show 🗑
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| show | it will skew to the right (+) = (mean>median)
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| show | skewed to the right (+ skew)
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| if you have some extremely low outliers, what will happen to the distribution curve? | show 🗑
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| if mean < median, what would you expect your distribution curve to look like? | show 🗑
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| show | in the direction
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| show | greater
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| show | symmetrical
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| show | common value; nominal-level
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| show | measures of dispersion
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| show | measures of central tendency
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| range: | show 🗑
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| the greater the value of a range the greater the _______________ in the distribution | show 🗑
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| limitations to range | show 🗑
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| show | the distance from the third to 1st quartile; a kind of range that acoids some of the problems associated with range outliers by considering only the middle 50% of the cases in distribution
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| show | should use all the scores in the dist; should describe the average or typical deviation of the scores; increase in value as the scores become more diverse
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| the sum of squared deviations will _______________ with sample size | show 🗑
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| show | central tendency; variability
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| show | median
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| scores that are beyond 3 times the height of the IQR box in either direction are termed: | show 🗑
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| the standard deviation is ____________ for more diverse distributions and ______________ for less diverse distributions | show 🗑
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| show | the sum of all data points
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| t/f data that has a mean of 30 and a range of zero means there is littler variance | show 🗑
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| if you take all data points in a sample and find the difference between the mean and the sum, the answer will always be? | show 🗑
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| show | 0
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| show | outliers (extreme values) skew the mean
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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:
aereal