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Crazy boy [7]
3 years ago
8

Help me anyone please & thank you

Mathematics
1 answer:
viktelen [127]3 years ago
8 0

Answer: i'm pretty sure it's option A

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Using the same survey methodology: random sample of US residents between the ages of 18 to 75 who registered on the Crest websit
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Answer:

Stratified sampling

Step-by-step explanation:

Samples may be classified as:

Convenient: Sample drawn from a conveniently available pool.

Random: Basically, put all the options into a hat and drawn some of them.

Systematic: Every kth element is taken. For example, you want to survey something on the street, you interview every 5th person, for example.

Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.

Stratified: Also divides the population into groups. However, then only some elements of the group are surveyed.

In this question:

Population divided into groups, and random samples are drawn from the groups. This is a mark of stratified sampling.

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b) The SJSU football team will play 12 games next season. They have a 70% chance of winning each conference game and a 60% chance of winning each nonconference game. Let X be the number of games the SJSU football team wins next season.

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c) Evelyn has a 75% chance of getting an A in each class she takes. Let X be the number of times Evelyn earns an A during four years at SJSU.

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The awnser to this problem is either 12 or 7 by using multiplication or addition
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