Chapter 14, Problem 28SGA

To determine

To find the number of values that fall between the mean and one standard deviation above the mean.

Answer to Problem 28SGA

  $51.225$

Explanation of Solution

Given:

Total values normally distributed are $150$ .

Calculation:

There are $68.3\%$ values within one standard deviation of the mean and half of this percentage is above the mean.

So, the total values in the given range are-

  $\begin{array}{l}=150\times \frac{0.683}{2}\\ =51.225\end{array}$