Data are available for all fires in Chicago last year on x = number of firefighters at
Question:
a. If the correlation is positive, does this mean that having more firefighters at a fire causes the damage to be worse? Explain.
b. Identify a third variable that could be a common cause of x and y. Construct a hypothetical scatter plot (like Figure 3.22 for crime and education), identifying points according to their value on the third variable, to illustrate your argument.
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a No Having more firefighters is likely a result of the fire being ...View the full answer
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Related Book For
Statistics The Art And Science Of Learning From Data
ISBN: 9780321755940
3rd Edition
Authors: Alan Agresti, Christine A. Franklin
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