Fitting a straight line to a set of data yields the following prediction line. C
ID: 3154310 • Letter: F
Question
Fitting a straight line to a set of data yields the following prediction line. Complete (a) through (c) below. a. Interpret the meaning of the Y-intercept, bo Choose the correct answer below. O B. The Y-intercept, bo 4, implies that when the value of X is 0, the mean value of Y is 4. ° C. The Y-intercept, bo-9, implies that when the value of X is 0, the mean value of Y is 9. O D. The Y-intercept, bo-4, implies that for each increase of 1 unit in x, the value of Y is expected to increase by 4 units. b. Interpret the meaning of the slope, b1. Choose the correct answer below. O A. The slope, b1 4, implies that for each increase of 1 unit in X, the value of Y is expected to increase by 4 units. O B. The slope, b1 9, implies that for each increase of 1 unit in X, the value of Y is expected to increase by 9 units. O C. The slope, b1 -9, implies that the average value of Y is 9 O D. The slope, b 1-9, implies that for each increase of 1 unit in x, the value of Y is expected to decrease by 9 units. c. Predict the mean value of Y for X-2. Y(Simplify your answer.) Yi- (Simplify your answer.)Explanation / Answer
Y intercept is the length on Y axis i.e when x=0, y=4 is the intercept Yo
Answer is B
ques 2
Slope is coeeficient od X=+9
Answer is D.
Ques 3
For X=2
y=4+9(2)=22
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