4. For eac If it is only a correlation, name a possible lurking variable that ma

Question

4. For eac If it is only a correlation, name a possible lurking variable that may be the cause of the results h research finding, decide whether there is evidence of causation, correlation or both. As the sales of television sets has increased, so has the number of overweight adults. Does television cause weight gain? a. b. A study in an elementary school found that children with larger shoe sizes were better readers than those with smaller shoe sizes. Do big feet make children read better? The more firefighters sent to a fire, the longer it takes to put out the fire. Does sending more firefighters cause a fire to burn longer? c.

Explanation / Answer

a) Correlation only. A lurking variable may be exercise time which decreases when sales of TV increases

b) Correlation only. A lurking variable may be age as older children have larger shoe sizes and make better readed.

c) Correlation only. Size of fire. More firefighters are sent to more deadly fires, which burn longer.

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