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
#SPJ1
Step-by-step explanation:
648/18
18/64=3 remaining 10
bring 8 down making 108
108/18=12
3 and 12=312
ans =312
Answer:
24
Step-by-step explanation:
To find the range, you must subtract the lowest value from the highest value in the data set. If you organize the set from least to greatest, 72 is the lowest, and 96 is the highest.
So, 96 - 72 = 24, which is the range.
Answer:
7.5* 10^8
Step-by-step explanation:
(1.5 x 10^5)(5 x 10^3)
Multiply the numbers
1.5*5=7.5
Add the exponents
10 ^(5+3) = 10^8
Put back together
7.5* 10^8
This is in scientific notation
You need to convert the quarts to fluid ounces,
I recommend google.