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Mandarinka [93]
1 year ago
6

what are the extraneous variables eliminated by randomly selecting schools into the experiment and control groups?

Mathematics
1 answer:
Bingel [31]1 year ago
6 0

Regression to the mean and selection bias are the superfluous variables that are removed by randomly choosing schools for the experiment and control groups.

A statistical phenomenon known as regression to the mean (RTM) states that if a random outcome of any measurement or event is severe in the first example, the second or following outcomes will be less extreme. In other words, it will be somewhat near to the distribution's mean or center.

According to regression to the mean (RTM), if an experiment's first result is extreme, the second result will be more in line with the population mean.

Decisions are made incorrectly as a result of this prejudice.

To mitigate the detrimental impacts of regression to the mean, organizations can exercise critical thinking and undertake a randomized controlled trial (RCT) with an experimental group and a control group.

Learn more about Regression :

brainly.com/question/14548066

#SPJ4

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Solve for x<br>a.81<br>b.41<br>c.1681
Jlenok [28]
A=9 , b=40

Pythagorean theorem
a^2+b^2=x^2 \\\\ x=\sqrt{a^2+b^2}=\sqrt{9^2+40^2}=\sqrt{81+1600}=\sqrt{1681}=\sqrt{41^2}=41
5 0
3 years ago
A number y minus 6 is 15
Kitty [74]

Answer:

21

Step-by-step explanation:

15 + 6= 21

so 21-6= 15

there for your answer would be 21

Mark me brainliest plz

8 0
2 years ago
Plz explain how to do this!!!
cestrela7 [59]

Answer:

Step-by-step explanation:

You are trying to find the value of K, so to do that you need to get k by itself (example : K= 3-5 instead of K+5= 3)

So in 1a i would simplify 7k-3k= 4k

then 4k=11

now to get rid of the 4 and get the k alone- you DIVIDE 4k by 4 and divide 11 by 4 cause you need to do it on both sides of the equation, it should look like this.

4k= 11

-   =  -

4      4

(4k over 4 and 11 over four)

so the answer is k = 2.75  cause 11/4 = 2.75

8 0
2 years ago
1. 9-бҳ + 8) - 8(2х6)
miv72 [106K]

Answer: -16x^6 - 6x + 17

Step-by-step explanation: Simplify the expression.

I hope this helps you out. :)

6 0
3 years ago
V = 459 root cm^3<br> H = 17 cm<br> Find the radius
AlladinOne [14]

Answer:

9 cm

Step-by-step explanation:

r² = 3×V/π×h

= 3× 459π/(π×17)

= 81

r= √81= 9

3 0
2 years ago
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