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3 years ago

14

What does control for eximerment mean .

2 answers:

docker41 [41]3 years ago

6 0

Answer:

The definition of a control experiment is a test where the person conducting the test only changes one variable at a time in order to isolate the results. An experiment where all subjects involved in the experiment are treated exactly the same except for one deviation is an example of a control experiment.

Step-by-step explanation:

ohaa [14]3 years ago

5 0

Answer/Explanation:

You need a control to show how 1 changed variable will change to result.

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Marta_Voda [28]

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Step-by-step explanation:

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3 years ago

Suppose we want to choose colors, without replacement, from the colors red, blue, green, and purple.

DerKrebs [107]

The number of ways when the choice is not relevant is 4

<h3>How to determine the number of ways?</h3>

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The color to choose are:

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When the choice is relevant, we have:

$Ways = ^nP_r$

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2 years ago

What is the product of (a+b) (a-b)

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Answer:

$a^{2}+b^{2}$

Step-by-step explanation:

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