E = 0.028
Explanation:[tex]E\text{ = 2 }\sqrt[]{\frac{0.286(1-0.286)}{1041}}[/tex]
simplifying:
[tex]\begin{gathered} 1\text{ - 0.286 = 0.714} \\ \\ E\text{ = 2 }\sqrt[]{\frac{0.286(0.714)}{1041}} \\ E\text{ = 2 }\sqrt[]{\frac{0.204204}{1041}} \\ E\text{ = 2 }\sqrt[]{0.000196} \end{gathered}[/tex][tex]\begin{gathered} E\text{ = 2 }\times\text{ 0.0140} \\ E\text{ = 0.028} \end{gathered}[/tex]
