Answer:
Step-by-step explanation:
One
Randomization not only occurs, but the person conducting the experiment has no idea who is receiving what. If there are two groups, there are members in each group that receive a drug and others who do not.
Two
poses no interference on the subjects. The information is obtained. It is pretty objective. When the survey is complete so is the person interviewed by those conducting the survey.
Three
Treatment is imposed at least on 1/2 the participants.
Answer:
-3
Step-by-step explanation:




Answer:
the answer is A cause the rest don't make sense they do but you would only get A
Answer:
The integer that shows the change in the number of toy cars Bader has is <u>-24.</u>
Explanation:
Think of it like a math problem, when you take away from your own amount, (in this case, his cars) you're subtracting from the original amount of things you had. The symbol for subtraction is also "-", so with that information it's a bit self explanatory to know which answer is correct.
The pattern rule is minus 57.
564 - 57 = 507.
The answer is 507.