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strojnjashka [21]
3 years ago
13

The degree to which a quasi-experiment supports a causal claim depends on which of the following? Its duration and sample size I

ts importance and external validity The degree to which they rule out as many threats to internal validity as possible Its statistical significance and practical significance 1
Mathematics
1 answer:
melisa1 [442]3 years ago
5 0

Answer:

Correct answer is:

The degree to which they rule out as many threats to internal validity as possible

Step-by-step explanation:

quasi-experiment supports a causal claim depends Its design and its results. It depends on Internal validity which is a scientific concept that addresses the relationship between two variables. Threat to internal validity includes history, maturation, testing, instrumentation, regression, selection, experimental mortality, and an interaction of threats.

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A sunflower is 15 inches tall and grows 2 inches a week. How many weeks will it take for the
Zarrin [17]

Answer:

4 weeks

Step-by-step explanation:

15 + 2x = 23

2x = 8

x = 4

8 0
2 years ago
Kristin spent $131 on shirts. Fancy shirts cost $28 and plain shirts cost $15. If she bought a total of 7 then how many of each
Tpy6a [65]
Hi there!!

First, Let plain shirts be x
Let fancy shirts be y 
x + y = 7
15x + 28y = 131 
Multiply first equation by 28 to eliminate y: 
28x + 28y = 196
<span>15x + 28y = 131 
</span>Subtracting the two equations:
13x = 65
<span>x = 5 </span>
Substituting x to get y:
x + y = 7
5 + y = 7
<span>y = 2 </span>
<span>Answer: 5 plain shirts and 2 fancy shirts
</span>
Hope this helps u!!
Have an amazing rest of ur day:)))
3 0
2 years ago
6.
Snowcat [4.5K]
The vertex of the graph is (2,-4). It is a minimum as it is the lowest point on the parabola facing upwards. This would be option C.
6 0
2 years ago
What is the value of this expression?
Minchanka [31]
The answer would be D.
7 0
2 years ago
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It takes 2.5 hours to fill the pool with 1,625 gallons or wate,
morpeh [17]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
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