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Lana71 [14]
3 years ago
13

Please help !!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
7 0

Answer:

1.107cm 2. 112 cm

Step-by-step explanation:

your welcome

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To remove the bias

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In the given study, the treatment is caffeine pills. So neither the subjects know they received caffeine pills nor the experimenter knows that which subject received which pill. Hence, this is a double blind study.

Such a study is used to remove the potential bias from the study. For example, if a subject is told that he is given a caffeine pill his actions will re-enforce that he has taken the pill, even in the case when he is given a placebo instead of actual pill. So the belief of the subject may cause bias in the result. This is removed by using the double blind study.

Also, since the experimenter also does not know which subject received the treatment, they won't act in different ways towards different subjects to give away any hints or clue. If the experimenter knows which subjects is given actual treatment, he may behave differently with him. So the double blind study removes this sort of bias as we..

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Each month, a shopkeeper spends 3x+2 dollars on rent and 7x+4 on electricity. Ahmed claims that the shopkeeper spent a total of
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4vir4ik [10]

The slope of the line y=\frac{3}{5} x-1 is m=\frac{3}{5}.

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Brainliest if this was helpful. Thanks!

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