To compare two groups graphically one can use the same
To compare two groups graphically, one can use the same stems for each and put leaves for one group on one side and for the other group on the other side. This is called a back-to back stem-and-leaf plot. The figure shown compares sugar amounts (expressed in milligrams) for cereals listed in the table according to whether they were intended for adults or children.
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a. Is the distribution of sugar values similar or different for the two cereal types? If they are different, describe the difference.
b. Construct a back-to-back stem-and-leaf plot for the sodium values, listed in Table 2.3. Is the distribution of sodium values similar, or different, for the two cereal types?
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