Question

Butterfly Park Survey
Park Number of Violet Butterflies Total Number of Butterflies
A 28 73
B 45 98
C 53 84
D 34 67


Based on the survey, which park had the greatest percentage of violet butterflies?
Park A
Park B
Park C
Park D

Answer 1

look at each park one at a time

divide (number of violet butterflies)/(total number of butterflies) for each of the 4parks, then pick the one that gives you the biggest result

Answer 2

Say I also had park E with the following data:
```
Violet # of Butterflies Total # of Butterflies

Park \(\rm E\) 60 80
```
then the fraction of purple butterflies to total butterflies would be: 60/80
(That, simplfies to 3/4 - or as a decimal 0.75)

To find the percentage multiply this fraction (this ratio of violet to the total), times 100.

0.75 • 100 = 75 So 75% of the butterflies in Park E are Violet.