The most effective in controlling the confounding variables is matched pairs design.
<h3>What is a matched pair design experiment?</h3>
A matched pairs design is when participants are matched based on shared characteristics that is of importance to the experiment. One member of the pair is put in the control group while the other is put in the experimental group.
Here are the options:
A completely randomized design experiment
A longitudinal observational study
A retrospective observational study
A matched-pair design experiment
To learn more about matched-pair design experiment, please check: brainly.com/question/23413412
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Answer:
It's cheaper to eat out.
Step-by-step explanation:
Answer:
area of netting she will need more =18-12=6m²
Step-by-step explanation:
area of rectangular garden=l*b=6*3=18m²
area of netting she has =12m²
area of netting she will need more =18-12=6m²
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Answer:1752
Step-by-step explanation: So what you need to do is to multiply the number of copies that the small copier makes with the 4 because it says that it makes it 4 times what the smaller copier does.
Answer: 800 miles
Step-by-step explanation:
Let the actual distance between City C and City D be represented by x.
The information given in the question can be formed into an equation as:
1.8 feet / 2.88 feet = 500 miles / x
Cross multiply
1.8 × x = 500 × 2.88
1.8x = 1440
x = 1440/1.8
x = 800
Therefore, the actual distance between City C and City D is 800 miles.