ANSWER:
2.2%
STEP-BY-STEP EXPLANATION:
The probability would be the quotient between the number of people with these characteristics (female, brown hair) and the total number of people
[tex]\begin{gathered} p(\text{female and brown) }=\frac{66}{548+876+82+612+716+66}=\frac{66}{1450}=0.022 \\ p(\text{female and brown) }=2.2\text{\%} \end{gathered}[/tex]