Calculus Question

Question

Given the following number as an approximate measurement, 5.210 pounds. What is the range of values for the actual value?

1. 5.205 to 5.215

2. 5.209 to 5.211

3. 5.2095 to 5.2105

4. 5.2099 to 5.2101

Answer 1

If no other data is available, assume an uncertainty of ±1 in the last digit. That makes the range 5.209 to 5.211. Use this same reasoning to answer a similar question that you posted.