1. if a regression line slopes up to the right, what type of correlation do the variables have?
2.The dependent variable can be seen as the:
3. A line passing as closely as possible to all the points in a scatter plot:
4. If r=−1
there is:
5. Identify the outlier: (3;12);(5;21);(−1;−4);(10;41);(20;79),(9;48);
6. If r=−0,19
what type of association between the variables is indicated?
7. A regression equation is y=5,138−2,691x
. Predict the value of y
if x=3,874
1. Positive correlation
2. Outcome or response variable
3. Regression line
4. Perfect negative correlation
5. (20;79) - the values of x and y are significantly higher compared to the other pairs
6. Weak negative association
7. y = 5.138 - 2.691(3.874) = 5.138 - 10.384 = -5.246