Question 1
To assure prompt service, the city metro routinely records wait times at its various bus stops. The length of time a customer must wait for a bus is recorded to the nearest second. What type of data are these?
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Qualitative
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Discrete
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Continuous
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Multivariate
Question 2
Two statistics students are arguing over which type of bar graph to use. One insists that a bar graph that displays the relative frequency will be better for displaying the overall shape of the data. The other holds that only a frequency bar graph will suffice. You happen along and hear their conversation. What advice do you give them?
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The relative frequency bar graph is superior at displaying the overall shape of the data.
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The frequency bar graph is superior at displaying the overall shape of the data.
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A pie chart would be needed here to display the overall shape of the data.
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Either bar graph would suffice, as they differ only in scale. The shape will be the same.
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