| Tag | Value |
|---|---|
| file | Inferential_Statistics_vufsw-equation-1090-en_vufsw-equation-1090-en |
| name | vufsw-equation-1090-en |
| section | inferential statistics/regression/equation |
| type | schoice |
| solution | FALSE, FALSE, TRUE, FALSE |
| Type | calculation |
| Program | calculator |
| Language | English |
| Level | statistical literacy |
The table below shows the data of 9 students concerning their exam grade (Y), measured on a scale from 0 to 100, and absence from lecture (X), measured in the number of missed lectures. The formula that belongs to the regression line is Y= 96.14+ 2.75*X. What is the estimated exam grade of a student who has not missed any lectures and therefore scores 0 on absence?
| X |
|
0 | 3 | 6 | 4 | 9 | 2 | 15 | 8 | 5 |
| Y |
|
98 | 86 | 80 | 82 | 71 | 92 | 55 | 76 | 82 |
The formula: Y= 96.14+ 2.75*X : if X is 0 than Y=96.14