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Doss [256]
3 years ago
14

Sandra conducted an observational study to learn how relationships with family affect happiness. She surveyed 500 people in her

hometown and found that 85% say that positive relationships with family members make them happy. What could be the conclusion of her study?
Mathematics
2 answers:
Alinara [238K]3 years ago
8 0
She may conclude that in her hometown, a majority of people experience greater happiness thanks to positive relationships. However, in order to apply this to a greater population, she will have to use a larger sample of people.
Dmitrij [34]3 years ago
6 0
Since this is an observational study and not an experiment, she can only conclude that there <span>may be a link between closeness with family and happiness but we cannot say that closeness with family results in happiness.</span>
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\boxed{\bold{66k+9}}

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Answer:

a.

                         R-------8/38--------RR

R------9/39--------B-------13/38-------RB

                          G------17/38--------RG

                          R-------9/38--------BR

B--------13/39------B-------12/38-------BB

                           G-------17/38-------BG

                             R-----9/38--------GR

G---------17/39-------B------13/38-------GB

                              G------16/38-------GG

b).

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RB=9/39 × 13/38=3/38

BR= 13/39 × 9/38 =3/38

BG= 13/39 × 17/38=17/114

GB= 17/39 × 13/38=17/114

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