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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:

y=-(x-7)(x+3)

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Are you sure the question is right or even the choices?

You can even write it as:

y=-(x+3)(x-7) but this is still not a choice.

Step-by-step explanation:

The vertex form of a quadratic is y=a(x-h)^2+k.

This is called vertex form because it gives you the vertex is (h,k).

We are given that (h,k)=(2,25) which makes our equation:

y=a(x-2)^2+25.

We can find the value of a by plugging in the x-intercept (7,0) for (x,y) into:

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Subtract 25 on both sides:

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So the equation for the quadratic is:

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Let's put this into factored form since all the choices are in factored form.

This will require us to multiply the (x-2)(x-2) out:

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Step-by-step explanation:

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Answer:

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