CAS Exam MAS-II Fall 2018, Question 41
Study guide: Exam MAS-II
You are provided with the following normalized and scaled data set:
i |
X_1 |
X_2 |
X_3 |
|---|---|---|---|
| 1 | -0.577 | 1 | -1 |
| 2 | -0.577 | 1 | 1 |
| 3 | -0.577 | -1 | 1 |
| 4 | 1.732 | -1 | -1 |
The first principle component loading vector of the data set is (0.707, -0.500, -0.500).
Calculate the proportion of variance explained by the first principle component.
- A) Less than 53%
- B) At least 53% but less than 58%
- C) At least 58% but less than 63%
- D) At least 63% but less than 68%
- E) At least 68%
Answer this question and see the worked solution