Melissa collected the data in the table. When x = 4, what is the residual?
| x | Given | Predicted | Residual |
|---|---|---|---|
| 1 | 2 | 1 | 1 |
| 2 | 3 | 4 | -1 |
| 3 | 8 | 7 | 1 |
| 4 | 9 | 10 | ? |
Solution:
Given, the values of x , given and the predicted.
A residual is a difference between the actual value and the predicted value.
If there is a scatter plot with a line of best fit, the residual would be the vertical distance between the actual value and the line of best fit.
The general form of residual is given - predicted.
Residual = 9 - 10 = -1
Therefore, the value of residual is -1.
Melissa collected the data in the table. When x = 4, what is the residual?
Summary:
Melissa collected the data in the table. When x = 4, the residual value is -1.
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