Question

A wildlife audit was recently conducted in Port Augusta, the results of which were as follows: Amphibians Insects Fish Reptiles Birds Mammals
12 30 9 25 22 42

What is the relative frequency of mammals in the survey?


I keep answering my assessment over and over again and I still only keep getting 38% help please

Answer 1

Answer:

The relative frequency of mammals in the survey is 30%.

Step-by-step explanation:

Relative frequency is the ratio of the occurrence of a singular event and the total number of outcome

Amphibians  Insects  Fish  Reptiles  Birds  Mammals

12                 30          9          25        22        42

Relative frequency = $= \frac{\text{ (number of trials that are successful)}}{\text{(total number of trials)}}$

Total number of wildlife animals  = 12+ 30 +9 +25+22+42 = 140

Now the relative frequency of mammals in the survey = $\frac{\text{total number of mammals}}{\text{ Total number of animals}}$

the relative frequency of mammals in the survey =$\frac{42}{140}$ = 0.3

Converting into percentage , we get

=$0.3 \times 100$

= 30 %