Answer:
[tex]Pr(Cat\ and \ Dog) = 0.50[/tex]
Step-by-step explanation:
Given
[tex]Total = 300[/tex]
[tex]Cat\ and\ Dog = 150[/tex]
See attachment
Required
[tex]Pr(Cat\ and \ Dog)[/tex]
This is calculated as:
[tex]Pr(Cat\ and \ Dog) = \frac{n(Cat\ and \ Dog)}{Total}[/tex]
This gives
[tex]Pr(Cat\ and \ Dog) = \frac{150}{300}[/tex]
[tex]Pr(Cat\ and \ Dog) = 0.50[/tex]