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navik [9.2K]
3 years ago
9

A researcher wants to know if eating a mint affects whether people can distinguish between two popular orange juice brands. To c

onduct an experiment, the researcher places participants in two groups. The treatment group will eat a mint before drinking a juice, while the control group will not eat a mint before drinking. Then the participants will guess the juice brand.
Randomization is important when assigning the participants to the treatment and control groups to ensure

that there will be the same number of participants in both groups.
that the experiment results can be generalized to all people.
that both groups have participants that like both popular juice brands.
that both groups are roughly equivalent with regards to demographics and juice preferences.
Mathematics
2 answers:
Sphinxa [80]3 years ago
4 0

Answer:

D

Step-by-step explanation:

Just took the quiz trust me

slamgirl [31]3 years ago
3 0

Answer:

D

that both groups are roughly equivalent with regards to demographics and juice preferences.

Step-by-step explanation:

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2 years ago
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a rectangular lawn has an area of a^3 - 125. use the difference of cubes to find out the dimensions of the rectangle.
ANEK [815]

The area of a rectangle is the product of its dimensions

The dimensions of the rectangle are: \mathbf{Length = a -5} and \mathbf{Width = a^2 + 5a + 25}

The area is given as:

\mathbf{Area = a^3 - 125}

Express 125 as 5^3

\mathbf{Area = a^3 - 5^3}

Apply difference of cubes

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\mathbf{Area = (a - 5)(a^2 + 5a + 25)}

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So, by comparison:

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Read more about areas at:

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