Answer:
The probability is 0.68439
Explanation:
The Probability is obtained as follows:
[tex]\begin{gathered} \sigma=\text{standard deviation = 12.5} \\ \mu=\operatorname{mean}=74 \\ x=\text{sample} \end{gathered}[/tex][tex]\begin{gathered} p(x<80)=p(z<\frac{x-u}{\sigma}) \\ \\ =p(z<\frac{80-74}{12.5}) \\ \\ =p(z<\frac{6}{12.5}) \\ \\ =p(z<0.48) \\ \\ =0.68439 \end{gathered}[/tex]
