question archive A table represents the possibility of an association between hair color and eye color
A table represents the possibility of an association between hair color and eye color
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A table represents the possibility of an association between hair color and eye color.
| Eye Color | ||||
| Blue | Green | Brown | ||
| Hair Color | Blonde | 25 | 27 | 31 |
| Brown | 26 | 18 | 22 | |
What is the degrees of freedom?
- a.)
6
- b.)
1
- c.)
4
- d.)
2
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Answer: Degree of freedom= 2
Option D is correct, 2
| Blue | Green | Brown | Total | ||
| Blonde | Observed | 25 | 27 | 31 | 83 |
| Expected | 28.41 | 25.07 | 29.52 | 83.00 | |
| Brown | Observed | 26 | 18 | 22 | 66 |
| Expected | 22.59 | 19.93 | 23.48 | 66.00 | |
| Total | Observed | 51 | 45 | 53 | 149 |
| Expected | 51.00 | 45.00 | 53.00 | 149.00 | |
| 1.43 | chi-square | ||||
| 2 | df |
