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Ber [7]
3 years ago
15

In a sample of 800 U.S.​ adults, 219 think that most celebrities are good role models. Two U.S. adults are selected from this sa

mple without replacement.
Mathematics
1 answer:
shutvik [7]3 years ago
7 0

Answer:

Step-by-step explanation:

A.

P=(219/800)×(218/799)≈0.0747≈0.075

B.

800-219=581

P=(581/800)×(580/799)≈0.527

c.

P( 1 think role models  and one thinks not role models)+P(both thinks they are role models)=(219/800)×(581/799)+(219/800)×(218/799)=(219×581+219×218)/(800×799)

=[219(581+218)]/(800×799)

=(219×799)/(800×799)

=219/800

=0.27375

=0.274

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