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soldi70 [24.7K]
3 years ago
6

Determine whether the underlined value is a parameter or a statistic. A study of 6076 adults in public rest rooms found that 23%

did not wash their hands before exiting. Is the value a parameter or a statistic?
A. The value is a parameter because the 6,076 adults in public rest rooms are a sample
B. The value is a parameter because the 6,076 adults in public rest rooms are a population.
C. The value is a statistic because the 6076 adults in public restrooms are a sample
D. The value is a statistic because the 6,076 adults in public rest rooms are a population
Mathematics
1 answer:
PtichkaEL [24]3 years ago
8 0

Answer:

C

Step-by-step explaination:

A statistic is a data obtained by sampling a population

A sample is a part of a population studied for the purpose of testing of an hypothesis

6076 is a statistical value because it represents a part (sample) of the whole population

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Answer:

85 student tickets and 35 adult tickets were sold.

Step-by-step explanation:

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We know that student tickets cost $12, adult ticket cost $20 and 120 tickets were sold.

So:

$12×A + $20×B = $1,720. Where A and B are the number of student tickets and adult tickets sold, respectively.

Given that 120 tickets were sold in total, we have that:

A + B = 120

So the system of equations to be solved is the following:

$12×A + $20×B = $1,720                    (1)

A + B = 120                                          (2)

Solving for 'A' in equation (2) we get:

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Substituting this value into equation (1) we get:

$12×(120 - B) + $20×B = $1,720

Solving for 'B' we have:

$12×(120 - B) + $20×B = $1,720

$1,440 - $12×B + $20×B = $1,720

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$8×B = $1,720 - $1,440

$8×B = $280

B = 35 tickets.

Given that B = 35, then A = 120 - 35 = 85 tickets.

So 85 student tickets and 35 adult tickets were sold.

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Answer:

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Step-by-step explanation:

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