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Serhud [2]
4 years ago
8

Determine whether the bolded numerical value is a parameter or a statistic. Explain your reasoning.The average annual salary of

50 of a company's 800 employees in $54,000A.Statistic because the data set of all employees' salaries is a sampleB. Parameter because the data set of salaries of 50 employees is a sampleC.Parameter​, because the data set of salaries of 50 employees is a populationD.Statistic​, because the data set of salaries of 50 employees is a population.E. Parameter​, because the data set of all employees' salaries is a sample.F. Statistic​, because the data set of salaries of 50 employees is a sample.G. Parameter​, because the data set of all employees' salaries is a population.H. Statistic​, because the data set of all employees' salariesis a population.
Mathematics
1 answer:
sergey [27]4 years ago
7 0

Answer:  F. Statistic​, because the data set of salaries of 50 employees is a sample.

Step-by-step explanation:

A parameter gives measure of a characteristic for the entire population where as a statistic gives measure of a characteristic for the subset of population (sample).

Given : The average annual salary of 50 of a company's 800 employees is $54,000.

It means the sample size = 50 and the sample mean salary= $54,000.

i.e $54,000 is giving the measure for mean salary for the sampled 50 employees.

It means $54,000 is a statistic .

Hence, the correct answer is option (F).

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If P(-9, -4), Q(-7, -1), R(-2, 5), S(-6, -1) are the coordinates of the points, what is the slope of line PQ?
matrenka [14]

Given :

P(-9, -4), Q(-7, -1), R(-2, 5), S(-6, -1).

To Find :

The slope of line PQ.

Solution :

We know , slope is given by :

m=\dfrac{y_2-y_1}{x_2-x_1}\\\\m=\dfrac{-9-(-7)}{-4-(-1)}\\\\m=\dfrac{2}{3}

Therefore, the slope of line PQ is 2/3.

Hence, this is the required solution.

8 0
3 years ago
Intro to inequalities 16>f, if f=17
Elanso [62]

Answer:

Is No Solution

Step-by-step explanation:

8 0
3 years ago
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I need answers 7a and 7b
k0ka [10]
I believe it is 20 and 15
6 0
3 years ago
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X^4+2x^2−63 solve by factoring group
Harrizon [31]

The polynomial equation be x⁴ + 2x² - 63 then the factoring group exists  ( x² - 7) (x² + 9).

<h3>What is meant by factorization?</h3>

Factorization is the process of dividing a large number into smaller numbers that, when multiplied together, yield the original number. Factorization occurs when you divide a number into its factors or divisors.

Let the given polynomial equation be  x⁴ + 2x² - 63

By factoring the above polynomial equation, we get

Here the coefficient of the first term, x⁴, is 1.

The coefficient of the middle term, 2x², is 2.

The final term, "the constant," is -63.

To find -63 factors whose sum equals the middle term's coefficient, which is 2.

-63 + 1 = -62

-21 + 3 = -18

-9 + 7 = -2

-7 + 9 = 2

Split the middle term of the polynomial using the two factors found in step 2 above, -7 and 9 .

x⁴ - 7x² + 9x² - 63.

= ( x² - 7) (x² + 9)

∴ x⁴ + 2x² - 63 = ( x² - 7) (x² + 9) .

The polynomial equation be x⁴ + 2x² - 63 then the factoring group exists (x² - 7) (x² + 9).

To learn more about factorization refer to :

brainly.com/question/25829061

#SPJ1

3 0
2 years ago
Joe is looking for a new laptop case. His computer is 18 x 13.5 inches. What is the perimeter and area of the laptop case?
sineoko [7]

Answer:

Perimeter =63 inches

Area = 243in²

Step-by-step explanation:

Given data

Length of computer = 18in

Width of computer = 13.5in

From the given data the computer has a rectangular shape

Perimeter of the computer = L+L+W+W= 2L+2W

Perimeter = 2(18)+ 2(13.5)

Perimeter = 36+27=63 inches

Area of rectangular shape = L*W

Area = 18 x 13.5= 243in²

3 0
3 years ago
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