Step-by-step explanation:

Answer:
a
Step-by-step explanation:
Answer:
no
Step-by-step explanation:
<span>systematic
this method called "</span><span>systematic random sampling"
</span>
Answer:
4/3
d/c
Step-by-step explanation:
You divide 16 by 4 and you get 4, so 4 dogs.
Then you divide 12 by 4 and you get 3, so 3 cats.
Lastly you were comparing dogs to cats so you have to put the about of days first then the amount of cats last.
The final answer is 4/3.