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Doss [256]
3 years ago
13

Which of the following statements represents one of the differences between an experiment and an observational study?

Mathematics
2 answers:
tiny-mole [99]3 years ago
5 0

Answer:

B

Step-by-step explanation:

svet-max [94.6K]3 years ago
3 0

Answer:

Introducing a change to the subgroup

Step-by-step explanation:

Given there are four statements.  We have to find the one which represents one of the differences between an experiment and an observational study.

The answer is option 2. Introducing a change to the subgroup

Experimental and observational studies are both types of studies between which a number of differences can be identified. When conducting research studies,  various types of research in order to arrive are adopted according to the need.  

An experimental study is a study where the researcher has control over most of the variables.

On the other hand, an observation study is a study where the researcher cannot control any variable but merely observes the subject without controlling any variables.

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kupik [55]
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(x - a)² + (y - b)² = r²

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r - a radius

r = 8; (-10; 6) ⇒ a = -10 and b = 6

subtitute

(x - (-10))² + (y - 6)² = 8²

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Find x in this proportion. 5/2x = 25/4 x=
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How do I factor trinomials of a form ax^2+bx+c when a=1 <br><br> In one paragraph
vitfil [10]

Answer:

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Step-by-step explanation:

As we know that a polynomial with three terms is said to be a trinomial.

Considering the trinomial of a form

ax^2+bx+c

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x^2+bx+c

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For example,

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\mathrm{Factor\:out\:common\:term\:}x+2

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6 0
3 years ago
Which expression is equivalent to 8(a+3)
Alex777 [14]

Answer:

8a + 24

Step-by-step explanation:

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8 0
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What is the equation of the following line
Alex_Xolod [135]
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3 years ago
Read 2 more answers
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