Section 2 ~ Picturing Distributions of Data Objective


Stem-and-leaf plot (for quantitative data)



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Stem-and-leaf plot (for quantitative data):







Example 4:

The following data values represent the ages of recent Academy Award-winning male actors at the time when they won the award. Make a stem-and-leaf plot for the data.


32 37 36 32 51 53 33 61 35 45
55 39 76 37 42 40 32 60 38 56
48 48 40 43 62 43 42 44 41 56

Line chart:

When qualitative, the dot is positioned horizontally by placing it on the tick mark of the category and vertically by placing it at the appropriate value that corresponds to the frequency.



When quantitative, the dot is positioned horizontally in the middle of the bin and vertically at the appropriate value that corresponds to the frequency.





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