Concept explainers
To show:that two data sets that are correlated but do not have a causal relationship.
Answer to Problem 17PPE
The two data sets that are correlated but do not have a causal relationship is:
(1) The number of mailboxes,
(2) The number of firefighters in a city.
Explanation of Solution
Given information:
Give two data sets that are correlated but do not have a causal relationship.
Calculation:
Consider the following two sets of data.
(1) The number of mailboxes,
(2) The number of firefighters in a city.
The two data sets that have a
There is possibly a link since both the number of mailboxes and the number of firefighters appears to rise as a city's population rises. Installing more mailboxes would not, however, raise the number of firefighters, because there is no causal relationship.
Therefore, the two data sets that are correlated but do not have a causal relationship.
Chapter 5 Solutions
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