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3 years ago

A researcher is conducting an experiment to test a new vitamin supplement. The researcher has recruited 8

Mathematics

1 answer:

Tju [1.3M]3 years ago

4 0

Answer:

Step-by-step explanation:

This is a problem of Permutation and Combination, not probability.

This clarification is given because most questions like this are on Probability and Statistics.

The researcher has recruited 8 participants and must divide them into two groups of 4 people each.

So there's:

GROUP A - Placebo Group

GROUP B - Experimental Group

Since the experiment is on humans - distinct objects - they will have distinct identities. Assume the 8 participants are lined up according to identities 1,2,3,4, 5,6,7,8

[2+2+2+2 +2+2+2+2] × 2 = 16×2 = 32

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2 years ago

A rectangle has a length of 12 yards less than 3 times its width. If the area of the rectangle is 135 square yards, find the len

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Answer:

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Step-by-step explanation:

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3 years ago

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