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slavikrds [6]
3 years ago
13

Parrots can develop cognitive issues as they get older. This may compromise their memory, ability to learn, awareness, sight, an

d hearing. A researcher wishes to conduct a study to find which of two medicines, Medicine A or Medicine B, is more effective in improving cognitive health. A total of 150 parrots that are at least 12 years old will be randomly selected from sanctuaries around the United States. The researcher will get consent from all owners, treat the parrots for 1 year, and evaluate changes in cognitive health. Part A: How would the study benefit from adding a control group
Mathematics
1 answer:
almond37 [142]3 years ago
4 0

Answer:

Ascertain the effectiveness of the treatment

Step-by-step explanation:

A control group is usually used in experimental. Research usually to establish a higher level of assurance or confidence in one's findings. The control group may be explained as that group in an experiment which do not receive the treatment given to the other group or groups, they may also be called the placebo group. Therefore, adding a control group, the treatment groups (Medicine A and Medicine B) would be weighed against the group which does not receive either of the two medicines.

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Savatey [412]

Hello!

0.85b-0.2b

0.65b

0.65b=0.65b

So these expressions are equivalent.

Hope it helps!

~Just a determined gal

#CarryOnLearning

MysteriousNature

5 0
3 years ago
Seven more than the product of a number and three is equal to four
vovangra [49]

Answer:

The Product is negative three (-3)

WHILE

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Step-by-step explanation:

Since seven more than the product gives 4.

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By subtracting 7 from both sides we get product as -3.

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By dividing three from both sides you get -1.

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3 years ago
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Answer:

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Step-by-step explanation:

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Answer:

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