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OpenStudy (anonymous):
how do I find the value of a intercept of a least-squares regression line?
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OpenStudy (dumbcow):
y_mean - slope*x_mean
OpenStudy (dumbcow):
you have to the slope of regression line first
OpenStudy (anonymous):
how do I find the slope?
OpenStudy (anonymous):
this is what the graph looks like
OpenStudy (dumbcow):
slope = r*(s_x/s_y) r is correlation s means std deviation
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OpenStudy (anonymous):
it says s=33.43 but it doesn't say anything about the correlation?
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