C is the answer. Congruent is just a synonym of similar therefore C is the answer.
The probability of landing on red the first time is 1/2, because there are two colors on the wheel. The probability of landing on blue the second time in that individual round is 1/2. The probability of landing on red the third time in that individual round is 1/2.
Multiply 1/2 by 1/2 by 1/2
Answer: The probability is 1/8
<h2>D. If subjects knew they were receiving an active treatment, researchers would not have known if any improvement was due to the new medication or to the expectation of <u>feeling </u>better. If the researchers knew which subjects received which treatments, they might have treated one group of subjects differently from the other group.</h2><h2 />
For your question... the answer would be D
It should be 12×18. 1:3 means you take where it's at, at 1 and multiply it's size by 3.
The answer is the third option which is AEF and FED, AEG and CEG
