I don’t really no this answer? Sorry
Answer:
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Step-by-step explanation:
76767676767676767676767676767676767676767676767676
Randomly assigned group. the art class isn't random and only consists of a select type of people--it is not a representative sample; maybe more left handed people enjoy art than do right handed people! therefore, even though the randomly assigned group is smaller, it is the better estimate.
63 people should be able to fit in because 7 times 9 is 63.
If I'm wrong, contact me.