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Insert the name of a visual graph you could view to decide if there is a linear relationship between the heights and weights of students in your class.
What is a name for this type of graph?
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For a relationship that interests you, insert the name of a quantitative variable (Y) that might play the role of a response (i.e., dependent) variable. Please do not use height or weight.
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For a relationship that interests you, insert the name of the quantitative variable (X) that might play the role of an explanatory (i.e., independent) variable. Please do not use height or weight.
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For the response and explanatory variable that interest you, please provide an approximate value of the slope coefficient in the linear equation used to predict Y from X.
First think about what units each of your variables will be measured in. Then think about how much your Y variable will change when X goes up by one.
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That means that when X increases by 1 unit, on average Y will go by units.
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For the response and explanatory variable that interest you, please provide an approximate value of the correlation coefficient, r = . That means r 2 ≈ .