Answer:
4
Step-by-step explanation a dog poops 5 kg a day
Answer:
x = 6
y = 8
Explanation and graph is given in picture
I hope it helps.
Answer:
d.a cluster sampling
Step-by-step explanation:
This plan exemplifies Cluster sampling. It is a sampling method where populations are placed into different separate groups like here into freshman, sophomore, junior, and senior classes. A random sample of these groups is then selected as here thirty students selected from each group to represent a specific population.<u> It is usually used in that type of research when there is no possible way to find information about a population as a whole.</u>
Step 2, 5*155= 775,which means the steps after that would make the answer even more variable

If the number you are rounding is followed by 5, 6, 7, 8, or 9, round the number up (+1).