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What is the difference between stem plot and histogram plot?

What is the difference between stem plot and histogram plot? Correct Answer Histogram does not have negative values while stem may have negative values

Histograms are used to see the frequency distribution of a variable to show the frequency of a class over any interval. So, naturally, a variable cannot repeat with a negative frequency. Stem plot only relates the two arguments it gets in terms of their projected values. So stem() can have negative values.

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