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dexar [7]
2 years ago
12

A) 363 B) 33 C) 7 D) 77

Mathematics
1 answer:
stich3 [128]2 years ago
3 0
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2x+y=5 y=x−1 system of equations please show your work
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Tammy spent $250 on a new coffee table and $148 a new rug.She gave the clerk $500.How much change did she receive?
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Read 2 more answers
A study of voting chose 663 registered voters at random shortly after an election. Of these, 72% said they had voted in the elec
Bingel [31]

Answer:

c) 72% is a statistic and 56% is a parameter.

Step-by-step explanation:

Previous concepts

A statistic or sample statistic "is any quantity computed from values in a sample", for example the sample mean, sample proportion and standard deviation

A parameter is "any numerical quantity that characterizes a given population or some aspect of it".

Solution to the problem

For this case we know that they select a sample of 663 registered voters and the sample proportion from these registered voters is:

\hat p = 0.72 representing the sample proportion of people who voted in the election

They info that they have is that the true proportion before is p =0.52 and that represent a value related to the population.

So on this case the 0.72 represent a statistic since represent the sample and the 0.52 is a value who represent the population for this case is a parameter.

So the correct option is:

c) 72% is a statistic and 56% is a parameter.

8 0
3 years ago
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