Answer:
C. No, because the subjects are randomly assigned to treatment groups
Step-by-step explanation:
We are told that 80 people are selected at random and are given the drug gabapentin.
Also that the remaining people are given the placebo.
This means that they are randomly assigned treatment groups and so it is a completely randomized block design and as such the use of volunteers doesn't make it invalid.
The answer is C- Midsegment
4 x 3 = 12
1 x 3 = 3
12 + 3 = 15
answer
15 square units
Answer:in what can I help
Step-by-step explanation: