ANSWER
Biodiversity index = 0.096
EXPLANATION
Given 7 different organisms with their individual numbers.
Biodiversity Index is:
[tex]\text{ }\frac{Total\text{ number of species}}{Total\text{ number of individuals in the area}}[/tex]i.e:
[tex]\begin{gathered} Biodiversity\text{ Index = }\frac{7}{15+2+30+1+4+16+5} \\ \text{ = }\frac{7}{73} \\ \text{ = 0.09589} \end{gathered}[/tex]Hence, the Biodiversity Index of Fraya's local park is 0.096. This is a low biodiversity since it's closer to 0.