Calculate the mean speed - Edexcel - GCSE Physics Combined Science - Question 4 - 2023 - Paper 2

To calculate the mean speed, we need to find the average of the three measurements provided:

1. Add the three speed measurements:

   1.31 + 1.27 + 1.16 = 3.74 m/s

2. Divide the total by the number of measurements (3):

   Mean speed = ( \frac{3.74}{3} = 1.2467 ) m/s

3. Rounding this result to two decimal places gives:

   Mean speed ≈ 1.25 m/s.