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Rashid [163]
2 years ago
11

A dentist conducts a survey to determine whether a certain brand of mouthwash improves gum health more than others. When his pat

ients come in for their regular cleanings, the dentist surveys them about their mouthwash use and makes a conclusion based on the survey results. The conclusion drawn from the study is because the sample is . In this instance, an study was conducted.
Mathematics
2 answers:
kicyunya [14]2 years ago
4 0

Answer: The conclusion drawn from the study is *invalid* because the sample is *biased*. In this instance, an *inappropriate* study was concluded.

crimeas [40]2 years ago
4 0

Answer:

The conclusion drawn from the study is NOT VALID because the sample is BIASED. In this instance, an INAPPROPRIATE study was conducted.

Please mark me brainliest, I really need it.

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Answer:

Step-by-step explanation:

x + 5/y^2

x = 2/3

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2/3 + 5 / (1/3)^2            Expand (1/3)^2

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2/3 + 5/1 / (1/9)             Invert and multiply the second expression

2/3 + 5/1 * 9                 Simplify 5/1

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I'm not getting any of these. It's possible I'm misreading the question, but what you've given is the result I got. All I can suggest is that you ask your teacher how this is done.

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