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Sergio [31]
3 years ago
13

Imagine that you are planning to estimate the price of the average book at your college bookstore. The bookstore carries 13,000

titles, but you plan to sample only 200 books. You will select a sample of 200 books, record the price of each book, and use the average of the 200 books to estimate the average price of the 13,000 books in the bookstore. Questions: What is the sample in this study, and what is the population
Mathematics
1 answer:
mafiozo [28]3 years ago
3 0

Answer: "13,000 books" represents the population.

"200" books represents the sample.

Step-by-step explanation:

  • A population is the term that denotes a whole large possible group of individuals, objects, events or measurements.
  • A subset of population is known as ample.
  • When population is too large to the researcher  , then it uses sample to represent the entire population.

Here,  "13,000 books" represents the population.

"200" books represents the sample which is a subset of 13,000 books.

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A theater group made appearances into cities the hotel charge before tax and the second city was 1500 higher than the first the
Svetlanka [38]

Answer:

The hotel charge in each city before tax was <u>$5125</u> of the first city and <u>$3625</u> of the second city.

Step-by-step explanation:

Given:

A theater group made appearances into cities the hotel charge before tax and the second city was 1500 higher than the first.

The tax of the first city was 6% and the tax of the second city was 10%.

Total hotel tax paid for two cities with $670.

Now, to find the hotel charge in each city before tax.

Let the hotel charge in first city before tax be x.

And the hotel charge in second city before tax be y.

<em>So, as the hotel charge of the second city was 1500 higher than the first.</em>

<em>Thus</em>,

y=x-1500   ........(1)

<em>And as given, the tax of the first city was 6% and the tax of the second city was 10%, total hotel tax paid for two cities with $670.</em>

6% of x + 10% of y = $670.

\frac{6x}{100} +\frac{10y}{100} =670

0.06x+0.10y=670

Substituting the value of y from equation (1) we get:

0.06x+0.10(x-1500)=670

0.06x+0.10x-150=670

0.16x-150=670

<em>Adding both sides by 150 we get:</em>

0.16x=820

<em>Dividing both sides by 0.16 we get:</em>

x=5125.

<em>The hotel charge in first city before tax = $5125.</em>

Now, substituting the value of x in equation (1) we get:

y=x-1500

y=5125-1500

y=3625.

<em>The hotel charge in second city before tax = $3625.</em>

Therefore, the hotel charge in each city before tax was $5125 of the first city and $3625 of the second city.

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Answer:

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Step-by-step explanation:

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Answer: the Answer is b

Step-by-step explanation:

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The answer is C. 7.1 feet.



I hope this helps.
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Does anyone know this ?
MariettaO [177]
180 - 64 = 116
116 / 2 = 58 :)

Check: 58 + 58 + 64 = 180
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