16 weeks. Just add 23 + 4 +4 and so on to get your answer.
Answer:
1/64
Step-by-step explanation:
hope that helps
<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
W=0
Z=-2
Is there a need for explanation?
is symmetric if 
. We have
is indeed symmetric.