Following table provides information on standard deviations of Principal Component Analysis on a certain dataset. There are
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Following table provides information on standard deviations of Principal Component Analysis on a certain dataset. There are 15 variables in the data and PCA is run on scaled data.
| PC1 | PC2 | PC3 | PC4 |
Stdev | 2.3 | 2.1 | 1.5 | 0.960 |
What is the proportion of total variability explained by the 4 PCs?
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