1) A. Biased because the population could be uneven. Too many of one ethnicity, too many of one gender, etc.
2) I believe this one is C. because there are not enough people. You need to survey the majority of parents instead of a selected few.
3) There are 80 green marbles per 500, therefore calculate the percentage.

or

percent. Multiply

percent or

times 25. It gives you

.
4) This one is a probability thing too. For every 500 batteries, there are 3 that are defective, therefore,

.

5) Yet another one. Add up all the nuts and you get

. The chance of getting a cashew from these

is:

.
Therefore:
Answer:
(0,0) (1,2) (2,4) (3,6)
Step-by-step explanation:
They all share the same slope which is 1/2
You need to find 24% of $7000 because that's the total interest over the course of 3 years. The answer is $1680
I believe that it is 24.99 but I'm not too sure. Anyways I hope I helped!
The answer than you are looking for is 53.84