Study Guide 2.4-2.5
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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| frequncy polygon | Uses line segemnts connected to points directly above class midpoint values Ex. ./'\-.-./'
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| Relative frequncy polygon | Uses relative freqincies ( proportions or percentages) for the vertical scale
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| Ogive | A line graph that depicts cumulative frequncies
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| Dot plot | Consists of a graph in which each each data value is plotted as a point ( or dot) along a scale of values. Dots reprsenting equal values are stacked
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| Steamplot(Steam-and-Leaf plot) | represents quantitative data by seperating each value into two parts: the stem( such as the leftmost digit 60=6) and the leaf( such as the right most digit 64=4 or 159=9)
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| bar graph | uses bars of equal width to show frequncies of categories of qualitative data. Vertical scale represents frequncies or relative frequncies. Horizontal scale identifies the different categories of qualitative data.
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| multiple bar graph | has two or more sets of bars and is used to compare two or data sets. ex: Ii Ii Ii
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| Pareto Chart | a bar graph for qualitative data, with the bars arranged in descending ordeer according to frequncies ex:li:.
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| Pie chart | a graph depicting qualittative data as slices of a circle is proportional to frequency count.
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| Scatter plot( or scatter diagram) | A plot of paired (x,y) data with a horizontal x-axis and a vertical y-axis. Used to determine whether there is a relationship between the two variables
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| time-series graph | data that have been collected at different points in time
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| Nonzero axis | misleading because one or both of the axes begin at some value other than zero, so that the differences are exaggerated
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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.
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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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jking009
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