Chapter 4 Multiple Choice Questions

. In the context of a histogram, what does the term 'binning' refer to?

Dividing up the entire range of values in your continuous data into a series of intervals

Discarding outlying data

Reshaping your continuous data to get a normal distribution

Discarding data that goes against your expectations for the data set

. What do the Sturges' and Rice rules offer suggestions for?

Whether to use a histogram or a boxplot

Sensible scaling of the y-axis

How many bins to use in a histogram

All of the above

. Which of the following is a key weakness of histograms?

They are hard to interpret.

They obscure the presence of outliers.

They can look unprofessional.

They do not highlight if a lot of the sample values are identical.

. When dealing with a sample of data that spans several orders of magnitude, what might a good solution to effective data presentation with a histogram involve?

Using more bins

Logging the data

Using bigger bins

Using smaller bins

. In a boxplot, the ______ is represented by a dark line running horizontally within the box.

. Variations in the rules followed when drawing whiskers on a boxplot mean that the different types can have different meanings. When using a boxplot, therefore, it is important to do which of the following?

Use Rice's rule to pick the best type of whiskers for your case

Define your type of whiskers in the figure caption

Choose the method that produces the most symmetric whiskers

Choose the method that produces the smallest whiskers

. Which of the following describes a violin plot?

A violin plot is always more visually appealing than a histogram.

A violin plot is a cross between a boxplot and a pie chart.

A violin plot is a cross between a boxplot and a histogram.

A violin plot is similar to a boxplot.

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