(a) List of the animals in order of popularity from most popular to least popular.
- Dogs
- cats
- others
- Horse
(b) I estimated that 250 students were interviewed. Based on my estimate, how many students have an “other” pet? Show your work.
Total Number of students = 250 . In that 8 % of students have other pets
Then
Number of students having other pets
= 8% of 250
= [tex]\frac{8}{100} \times 250[/tex]
=>[tex]0.08 \times 250[/tex]
=> 20 students
c) If 75 students have cats, was my estimate of 250 students correct? If not, what is the actual number of students interviewed? Explain.
To Find this, lets us find the number students with cats
Number of students having cats
=> 20% 250
=> [tex]0.2 \times 250[/tex]
=> 50 students
So the estimate of 250 students is wrong
let correct estimate be x
20 % of x = 75
[tex]20\% \times x = 75[/tex]
[tex]\frac{20}{100} \times x = 75[/tex]
[tex]0.2 \times x = 75[/tex]
[tex]x = \frac{75}{0.2}[/tex]
x = 375
x = 375 students
The actual number of students interviewed is 375
