Answer:
The answer is B. 
Step-by-step explanation:
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Answer:
Step-by-step explanation:

Answer:

Step-by-step explanation:
Any whole number can be made into a fraction simply by putting it over 1.
Answer:
Yes, it is a matched pairs design.
Step-by-step explanation:
Assuming that the twins used in the experiment are identical, this can be treated as a matched pairs designed. Although there are two individuals receiving different treatments, they are genetically similar enough for this to be considered a matched pairs design (One individual subjected to two different treatments).