The length of a rod as measured in an experiment is found to be 2.48 m, 2.46 m , 2.49 m , 2.49 m and 2.46 m. Find the average length , the absolute error in each observation and the percentage error.

Explanation

To solve the problem step by step, we will find the average length of the rod, the absolute error for each observation, and the percentage error.

### Step 1: Calculate the Average Length
To find the average length of the rod, we sum all the measurements and divide by the number of measurements.

Given measurements:
- \( x_1 = 2.48 \, \text{m} \)
- \( x_2 = 2.46 \, \text{m} \)
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