Chapter 11.4, Problem 55E

(A)

To determine

To approximate: The probability $P\left(\mu -\sigma \le X\le \mu +\sigma \right)$ to four decimal places with $\mu =0$ and $\sigma =0.5$.

(B)

To determine

To approximate: The probability $P\left(\mu -\sigma \le X\le \mu +\sigma \right)$ to four decimal places with $\mu =0$ and $\sigma =1$ using graphing calculator.

(C)

To determine

To approximate: The probability $P\left(\mu -\sigma \le X\le \mu +\sigma \right)$ to four decimal places with $\mu =0$ and $\sigma =2$ using graphing calculator.