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KIM [24]
3 years ago
14

A new cream was developed to reduce the irritation caused by poison ivy. To test the effectiveness, researchers put an ad online

asking for volunteers to participate in the study. One hundred subjects replied, and they were informed that one group would receive the new cream and the other group would receive a cream with no active ingredient. All 100 subjects were exposed to poison ivy. Fifty were then assigned to the group with the new cream, and 50 were assigned to the group with the cream with no active ingredient. After three days, the subjects’ level of irritation was measured.
Of the 50 subjects that were assigned to the cream with no active ingredient, 15 stated they had less irritation. What is this called?

placebo
control group
placebo effect
placebo control
Mathematics
2 answers:
Charra [1.4K]3 years ago
8 0

Answer:

placebo effect

Step-by-step explanation:

edge 2020/2021

TEA [102]3 years ago
4 0

Answer:

c

Step-by-step explanation:

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Find the expected value of the winnings
Orlov [11]

The expected value of the winnings from the game is $4

<h3>How to determine the expected value?</h3>

The payout probability distribution is given as:

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The expected value is then calculated as:

E(x) = \sum x * P(x)

This gives

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7 0
1 year ago
QUESTION 8
zlopas [31]

The probability that twenty customers will visiting Target stores will be 0.0007979.

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Your information is incomplete but the question will be solved based on the available information.

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= 0.70^20

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7 0
2 years ago
Suppose the population of Franklin was 29,494 in the year 2000. If the exponential rate of increase is 1.23%, what is the curren
alukav5142 [94]

Answer:

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Step-by-step explanation:

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22.14*29,494=652997.16

round it down to get 652997

8 0
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