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tae1731
23.07.2019 •
Mathematics
Penny is figuring the regression line for some data but needs in first figuring the predicted value of y. she knows that the slope is 3 and the intercept is 4. what is the predicted y value for an x score of 7?
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Ответ:
y = mx + b
Where,
m: slope of the line
b: intersection with the y axis
Substituting values we have:
y = 3x + 4
For x = 7 we have:
y = 3 (7) +4
y = 21 + 4
y = 25
The predicted and value for an x score of 7 is:
y = 25
Ответ: