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Evgesh-ka [11]
3 years ago
11

Suppose that a researcher is interested in the average standardized test score for fifth graders in a local school district. The

fifth graders at a specific school would comprise a​ ___________ and their average test score would be a​ ___________.
Mathematics
1 answer:
malfutka [58]3 years ago
7 0

Answer:

Sample, Statistic

Step-by-step explanation:

Suppose that a researcher is interested in the average standardized test score for fifth graders in a local school district. The fifth graders at a specific school would comprise a​ _Sample _ and their average test score would be a​ _Statistic_.

Any measurement from a sample is called statistic. hence the blanks are filled accordingly.

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2 years ago
Wendy can wash a car twice as fast as Jason. When they work together, Wendy and Jason can wash a large van in 2 hours. How many
Ugo [173]
X= number of hours would it take Jason to wash the van by himself.
2x=number of hours would it take Wendy to wash the van by herserlf.

<span>we calcaulate the fraction of  work by Jason during one hour </span>

x hours-----------------------------1 work
1 hour----------------------   fraction of work during one hour.

fraction of work during one hour=(1 hour * 1work) / x hours=1/x


we calculate the fraction of work by Wendy during one hour.
2x hours-----------------------------1 work
1 hour----------------------   fraction of work during one hour.

fraction of work during one hour=(1 hour * 1work) / 2x hours=1/2x

We can suggest this equation:
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least common multiple=2x
2(2+1)=2x
2(3)=2x
6=2x
x=6/2
x=3

answer: 3 hours would ti take Jason to wash the van by himself.


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3 years ago
Please help asap!!<br> Answer this using a graphing method please!
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Answer:

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The appropriate choice is ...
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Dividing by r gives
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Answer:

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Step-by-step explanation

it might be the answer. hope it helped :)

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