1.2 Describing Distributions of Quantitative Variables

Which of the following shows a dotplot?

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Which of the following shows a symmetric distribution?

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Which of these distributions is left skewed?

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Which of these distributions is uniform?

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Which distribution is irregularly shaped?

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Which distribution is unimodal?

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Which distribution is bimodal?

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Which of the following distributions has a gap?

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What is the median age of the 20 individuals shown in the histogram?

• 50

• 10

• Between 50 and 60

• Between 40 and 50

What is the mean age of the members of this church choir?

• 7

• 24

• 27

• 26