Here are the answers to your questions:
1. **Question 1:**
To calculate the precision to tolerance ratio, you can use the formula:
\(\text{Precision to Tolerance Ratio} = \frac{\text{Variance}}{\text{Tolerance}^2}\)
Given: Variance = 0.00072 and Tolerance = 0.01,
\(\text{Tolerance}^2 = (0.01)^2 = 0.0001\)
\(\text{Precision to Tolerance Ratio} = \frac{0.00072}{0.0001} = 7.2\)
None of the options is exactly 7.2, but