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LSRL and Correlation Coefficient
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How much can you expect to make if you work at your job for 10 years?
$43,300
What percent of the change in salary is due to a change in years of experience?
99.2%
What is the residual for 8 years?
$100
What letter represents the slope for the LSRL?
a
What is the equation for the line of best fit?
y=1.7x+26.3
The line of best fit equation is Inches of Snow = -.15(Temperature) + 24. What is the predicted level of snow if the temperature is 64 degrees?
14.4
If your explanatory variables go from 5 to 10, what is it called when you're asked to make a prediction OUTSIDE of that range?
extrapolation
The variable that goes on the x-axis is called the explanatory variable. What is the variable that goes on the y-axis called?
response variable
Which correlation is stronger? r = 0.7 or r = -.75?
r = -.75
If the coefficient of determination is 0.49 then the correlation coefficient is ______
r = 0.7
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