Ice cream sales and crime are positively correlated because crime tends to increase in the summer. If you fit a regression model with number of crimes committed as the response and ice cream sales and temperature as predictors would you expect ice cream sales to be a significant variable? Explain.
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This means that as ice cream sales increase, crime rates also tend to increase. Show more…
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Sri K.
There is a correlation between ice cream sales and crime rates. What can we conclude from this? Ice cream leads to more criminality Committing a crime makes an individual want ice cream Criminality is a sufficient, but not necessary, condition for ice cream sales There is likely a spurious relationship between ice cream sales and crime rate
Consider the following scatter plot that shows temperature vs number of ice cream sold, with temperature being the independent variable. a) Determine the correlation coefficient [1 mark] b) Describe the type and strength of correlation [1 mark] c) Use the regression equation to estimate the number of ice cream sold when the temperature is 18. [2 mark] d) What temperature would result in the sale of 80 ice creams? [2 mark]
Ana Carolina D.
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