Question

The record of daily rainfall (in centimetres) in Walwa village in the first 15 days of September is given below:
2.5 , 1.5, 4.0, 3.0, 0.5, 5.0, 5.5, 4.0, 2.5, 3.5, 6.0, 0.5, 0.5, 4.5, 1.5.
Find the mean rainfall for these 15 days.

Answer 1

$$\begin{gathered} \overline{\mathrm{X}}=\frac{\mathrm{Total}\left(x\times f\right)}{\mathrm{N}} \\ =\frac{45}{15} \\ =3 \end{gathered}$$

Hence, the mean rainfall for these 15 days is 3 cm.