A probability distribution of the claim sizes for an auto insurance policy appears in the following table.
Find the percentage of claims within one standard deviation of the mean. %
| Claims | Probability |
|---|---|
| 1 | 0.2 |
| 2 | 0.2 |
| 3 | 0.3 |
| 4 | 0.15 |
| 5 | 0.15 |
Find the percentage of claims within one standard deviation of the mean. %