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patriot [66]
3 years ago
8

What are the differences among an experiment, a study, and a survey?

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
6 0

Answer:

Step-by-step explanation:

One

Randomization not only occurs, but the person conducting the experiment has no idea who is receiving what. If there are two groups, there are members in each group that receive a drug and others who do not.

Two

poses no interference on the subjects. The information is obtained. It is pretty objective. When the survey is complete so is the person interviewed by those conducting the survey.

Three

Treatment is imposed at least on 1/2 the participants.

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<img src="https://tex.z-dn.net/?f=y%20%3D%20%20-%209x%20-%206" id="TexFormula1" title="y = - 9x - 6" alt="y = - 9x - 6" align=
Veronika [31]

Answer: 9x+y=-6

Step-by-step explanation:

Standard: Ax+By=C

y=-9x-6

We need -9x on the left side, to move it, we must add 9x on both sides.

9x+y=-9x-6+9x\\9x+y=-6

Done. We have Ax = 9x, By = 1y and C after the equal sign = -6

6 0
3 years ago
Identify the part, whole and percent in the following statement: Find 15% of 750
erma4kov [3.2K]
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8 0
3 years ago
Which inequality statement describes the two numbers on a number line?
makvit [3.9K]

Answer:

Option C)

-7

Step-by-step explanation:

We are given the following in the question:

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=-7 + 5\\=-2

The number line shows the two marked points.

As observed from the number line, we can write the inequality:

-7

Thus, the correct option is

Option C)

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7 0
4 years ago
Read 2 more answers
What is 3 1/4 x 3 2/5<br> ​
Eddi Din [679]

Answer:

Exact form:221/20

Decimal form:11.05

Mixed Number form:11 1/20

Step-by-step explanation:

4 0
3 years ago
How about finding the identity of thirty coins whose value is $1.00?
Taya2010 [7]

Answer:

2 dime

13 nickle

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Step-by-step explanation:

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