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Total questions: 22
Worksheet time: 44mins
What type of correlation (association) describes this real world scenario? The outside temperature and the amount of layers you wear.
What type of correlation (association) is this real world scenario? The number of siblings you have and your weight.
...if it makes a bear on a graph (grrr!)
A trend line was made using the scatter plot from an experiment on how the temperature of a rubber band affects the distance the rubber band can stretch. r=.84
Which most accurately describes the association?
strong positive
strong negative
weak positive
weak negative
The following r value was calculated from the trend line of a scatter plot that compared scores on science exam and the number of words written on the essay question. r=.28
Which best describes the association?
strong positive
strong negative
weak positive
weak negative
The following r value was obtained from the trend line of a scatter plot comparing car weight and distance traveled using a full tank of gas. r=−.86
Which best describes the association?
strong positive
strong negative
weak positive
weak negative
Estimate the correlation coefficient for this scatterplot.
A) r = 0.75
B) r = 0.89
C)r = 0.14
D) r = -0.97
Estimate the correlation coefficient for this scatterplot.
A) r = -0.9
B) r = 1
C) r = 0.9
D) r = -1
Which of the following regression models best fits the data of a scatter plot given the following info?
R2=0.853
R2=0.599
R2=0.967
R2=0.113
Which of the following regression models least fits the data of a scatter plot given the following info?
R2=0.853
R2=0.599
R2=0.967
R2=0.113
Which of the following regression model types would have the lowest value for the coefficient of determination?
Linear
Quadratic
Exponential
Logarithmic
Which regression model would have the coefficient of determination closest to +1.0?
Linear
Quadratic
Exponential
Logarithmic
