Chapter SH, Problem 22.2APP

To determine

To calculate: Mean of the measured pH values.

Answer to Problem 22.2APP

Mean of all the pH values is $\underset{\_}{4.7}$ .

Explanation of Solution

Given:

The measured pH values of rain are:

  $4.6,5.1,4.8,4.5,4.5,4.9,4.7,4.8$

Formula used:

Mean is given by the formula:

  $\text{Mean = }\frac{\text{Sum of terms}}{\text{Number of terms}}$

Calculation:

Mean of all the pH values is calculated as:

  $\begin{array}{l}\text{Mean = }\frac{\text{Sum of terms}}{\text{Number of terms}}\\ \text{Mean = }\frac{4.6+5.1+4.8+4.5+4.5+4.9+4.7+4.8}{8}\\ \text{Mean = 4}\text{.7}\end{array}$

Conclusion:

Mean of all the pH values is $\underset{\_}{4.7}$ .