Answer:
<h2>The greatest ratio between male and female students is shown by<u><em> School C.</em></u></h2>
Step-by-step explanation:
Givens
<h3>School A:</h3>
The ratio of male students to female students is 4:1. This means there's one female student per every 4 male students.
The ratio shown here is
![r=\frac{male}{female}=\frac{4}{1}=4](https://tex.z-dn.net/?f=r%3D%5Cfrac%7Bmale%7D%7Bfemale%7D%3D%5Cfrac%7B4%7D%7B1%7D%3D4)
<h3>School B:</h3>
The relationshop between male students and female students is
![y=\frac{4}{3}x](https://tex.z-dn.net/?f=y%3D%5Cfrac%7B4%7D%7B3%7Dx)
Which is a linear function, and the ratio of change is always the coefficient of the independent variable
![r=\frac{4}{3}](https://tex.z-dn.net/?f=r%3D%5Cfrac%7B4%7D%7B3%7D)
<h3>School C:</h3>
The number of males and females are shown in the table below
Female Male
280 1260
To find the ratio, we just need to divide:
![r=\frac{male}{female}=\frac{1260}{280}= 4.5](https://tex.z-dn.net/?f=r%3D%5Cfrac%7Bmale%7D%7Bfemale%7D%3D%5Cfrac%7B1260%7D%7B280%7D%3D%20%204.5)
Therefore, the greatest ratio between male and female students is shown by School C.