A pet vaccination clinic keeps track of medicinal needs by recording the weights of pets that come into the clinic. The vaccinations are administered according to weight classes divided up into ten-pound intervals. Would a bar graph or histogram be better for displaying the data, according to the clinic’s needs? Explain.
Question
A pet vaccination clinic keeps track of medicinal needs by recording the weights of pets that come into the clinic. The vaccinations are administered according to weight classes divided up into ten-pound intervals. Would a bar graph or histogram be better for displaying the data, according to the clinic’s needs? Explain.
Solution
A histogram would be a better choice for displaying this data. This is because histograms are used to represent data given in form of some groups. In this case, the weights of pets are grouped into ten-pound intervals. Each bar in a histogram represents the tabulated frequency at each interval.
In contrast, bar graphs are used to compare variables. Bar graphs represent categorical data with rectangular bars where lengths are proportional to the values that they represent.
In this case, since the clinic is not comparing different variables but is instead grouping the weights of pets into intervals, a histogram would be more appropriate.
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