Qualitatively interpret each of the following observed correlations: A) R=0.8 B) R=−0.2 3) If I have 12 paired (x,y) data values, how many pairs of pairs do I need to check for concordance or discordance if I want you calculate Kendall's Tau?

Answer:

D) Factors of the polynomial

Step-by-step explanation:

Example: If the polynomial 10x² represents the area of the rectangle, then

2x and 5x will be the dimensions of the rectangle. Thus they will be factors of the polynomial.

So, dimensions of the rectangle represents the factors of the polynomial.

The value of the measure of angle o is 16°

A triangle is a polygon with 3 sides and 3 angles.

Triangles can be equilateral, isosceles, scalene or right angled depending on the measure of the angles in the triangle.

The sum of the interior angle of an triangle sum up to 180°.

In triangle OPQ, q = 740 inches, o = 330 inches and ∠P = 23°

To find ∠O we need to find p first .

To find p, we use cosine rule,

\(p^{2}\) = \(o^{2}\) + \(q^{2}\) - 2(o)(q)cosP

\(p^{2}\) = \((330)^{2}\) + \((740)^{2}\) -2(330)(740) cos 23

\(p^{2}\) = 108900 + 547600 -488400(0.9205)

\(p^{2}\) = 656500 - 449575

\(p^{2}\) = 206928

p = \(\sqrt{206928}\)

p = 454.889 inches

To find ∠O, we use sine rule, which is,

p/SinP = o/sinO

454.89/sin23 = 330/sinO

By cross multiplying,

454.89sinO = 330sin23

454.89sinO  = 330(0.3907)

454.89sinO = 128.7

sinO = 128.7/454.89

sinO = 0.2829

∠O = Arc sin(0.2829)

∠O = 16° to the nearest degree

In conclusion, the measure of ∠O is 16° to the nearest degree

Learn more about cosine rule: https://brainly.com/question/23720007

#SPJ1

The equation for the line containing (-8,12) that is perpendicular to the line containing the points (3,2) and (-7,2) is x = -8.

To find the equation of a line perpendicular to another line, we need to consider the relationship between their slopes.

Step 1: Find the slope of the line passing through the points (3,2) and (-7,2).

The slope formula is given by (y2 - y1) / (x2 - x1). Let's substitute the values:

m = (2 - 2) / (-7 - 3) = 0 / -10 = 0

Step 2: Since the line we want to find is perpendicular to the given line, we know that the slopes of the two lines will be negative reciprocals of each other.

In other words, the product of the slopes of two perpendicular lines is -1.

So, the slope of the line we want to find is the negative reciprocal of the slope we found in Step 1. Let's calculate:

m_perpendicular = -1 / m = -1 / 0 = undefined

The slope of the perpendicular line is undefined because it is a vertical line.

Step 3: Now that we know the slope of the perpendicular line is undefined, we can write the equation of the line in the form x = a, where 'a' is the x-coordinate of any point on the line.

Since the line contains the point (-8,12), we can write the equation as:

x = -8

Therefore, the equation for the line containing (-8,12) that is perpendicular to the line containing the points (3,2) and (-7,2) is x = -8.

To know more about equations refer here:

https://brainly.com/question/10413253

#SPJ11

Answer:

I think it is segment...........

8

1) Evaluating this power:

2) Let's first multiply the exponents numerator by numerator, denominator, by denominator:

3) We can rewrite this as the same as the quartic root of 16 raised to 3rd power

This is equal to 8

To find the volume of the solid obtained by rotating the region under the curve over the interval [4, 7] about the x-axis, we can use the method of cylindrical shells.

The formula for the volume of a solid generated by rotating a curve f(x) about the x-axis, over an interval [a, b], is given by:

V = ∫[a, b] 2πx * f(x) * dx

In this case, the interval is [4, 7], so we need to evaluate the integral:

V = ∫[4, 7] 2πx * f(x) * dx

To find the function f(x), we need the equation of the curve. Unfortunately, you haven't provided the equation of the curve. If you can provide the equation of the curve, I will be able to help you further by calculating the integral and finding the volume.

Please provide the equation of the curve so that I can assist you in finding the volume of the solid.

Learn more about cylindrical here

https://brainly.com/question/27440983

#SPJ11

The proportion of the variation in the dependent variable y that is explained by the estimated regression equation is measured by the coefficient of determination.

What is coefficient of determination?

The effectiveness of a statistical model in forecasting a result is shown by the coefficient of determination (R²). The dependent variable in the model is a representation of the result.

R² can have a value of 0 or 1, with 1 being the maximum achievable. Simply said, a model's R² will be closer to 1 the more accurate its predictions are.

R² is a more precise measure of goodness of fit. The amount of volatility in the dependent variable that the model can account for.

You can typically tell whether your linear regression data's R² is high or low by graphing it. The graphs below, for instance, display two sets of simulated data:

Dots represent the observations.

The line of best fit, or predictions of the model, is displayed as a black line.

Purple lines represent the deviations (the residuals) between the data and their expected values.

To learn more regression equation, click on below link:

https://brainly.com/question/14184702

#SPJ4

Answer:

Wut-

Step-by-step explanation:

What is this? is this Gibberish?

Given:

Find-:

Select the graph that best describes the inequalities and system of inequalities.

Explanation-:

Graph of first inequality is:

Graph of the second inequality:

So the graph of inequality.



Answer:

Step-by-step explanation:

We don't know how you did the first way, so the only way we can make sure another way is different is to do it two ways.

1) First, we'll make use of the vertex-form equation. The given zeros are at -6 and +2, so the line of symmetry is x = (-6+2)/2 = -2. Then vertex form of the equation will look like ...

  y = a(x +2)^2 +k

We have two unknown values, so we need to make use of two points to find them.

Using (2, 0):

  0 = a(2 +2)^2 +k

  0 = 16a +k

Using (-4, 3):

  3 = a(-4+2)^2 +k

  3 = 4a +k

Subtracting the second equation from the first, we get

  0 -3 = (16a +k) -(4a +k)

  -3 = 12a

  a = -1/4

Substituting into the first of our equations, ...

  0 = 16(-1/4) + k = -4 +k

  k = 4

So, the equation is ...

  y = (-1/4)(x +2)^2 +4

__

2) Using factored form, we can write the equation as ...

  y = a(x +6)(x -2) . . . .  for zeros x=-6 and x=2

We can find 'a' by using the third point:

  3 = a(-4+6)(-4-2) = a(2)(-6) = -12a

  a = 3/-12 = -1/4

So, the equation is ...

  y = (-1/4)(x +6)(x -2)

__

3) You can also make use of the standard form equation. This gives rise to three equations in the three coefficients.

  y = ax^2 +bx +c

  0 = a(-6)^2 +b(-6) +c = 36a -6b +c

  3 = a(-4)^2 +b(-4) +c = 16a -4b +c

  0 = a(2)^2 +b(2) +c = 4a +2b +c

These can be solved by your favorite method to give ...

  a = -1/4, b = -1, c = 3

So, the equation is ...

  y = (-1/4)x^2 -x +3

Answer:

x = 12

The measure of Angel A and Angle B = 144°

Step-by-step explanation:

Angle ∠ A= 10x+24∘

Angle ∠B=6x+72 ∘

Angle A and Angle B are Alternate interior angles hence, they are equal to each other.

Hence:

10x + 24 = 6x + 72

Collect like terms

10x - 6x = 72 - 24

4x = 48

x = 48/4

x = 12

The measure of ∠ A= 10x+24∘

=( 10(12) + 24)°

=( 120 + 24)°

= 144°

The Measure of Angle ∠B=6x+72 ∘

=( 6(12) + 72)°

= (72 + 72)°

= 144°

Answer:

∠A = 144 degrees

Step-by-step explanation:

Look at attachment:

Hope this helps! :)

Based on the given mean and standard deviation, we can assume that the distribution of shoe sizes of American women follows a normal distribution curve. The empirical rule states that for a normal distribution, approximately 68% of the data falls within one standard deviation from the mean, approximately 95% falls within two standard deviations, and approximately 99.7% falls within three standard deviations.

Therefore, to find the percentage of American women with shoe sizes between 6.54 and 9.58, we need to calculate how many standard deviations away these sizes are from the mean.

First, we calculate the difference between each shoe size and the mean:

6.54 - 8.06 = -1.52

9.58 - 8.06 = 1.52

Next, we divide each difference by the standard deviation:

-1.52 ÷ 1.52 = -1

1.52 ÷ 1.52 = 1

This means that a shoe size of 6.54 is one standard deviation below the mean, and a shoe size of 9.58 is one standard deviation above the mean.

According to the empirical rule, approximately 68% of American women have shoe sizes that fall within one standard deviation from the mean. Therefore, approximately 68% of American women have shoe sizes between 6.54 and 9.58.

Learn more about distribution here:

https://brainly.com/question/31197941

#SPJ11

Answer:

C. Find the sum/difference.

1. 6 1/28

2. 7 2/9

3. 12 5/9

4. 9 14/15

5. 8 17/20

D. Add/Subtract

1. 9 2/15

2. 8 7/20

3. 8 9/10

4. 9 1/2

5. 7 5/9

E. Activity 3

1. 15 5/12 C.

2. 5 1/6 A.

3. 1 1/2 B.

4. 11 1/2 D.

5. N = 9 1/14 C.

F. Part 4

1. 16 7/40 C.

2. 16 7/15 A.

An algorithm that takes as input a list of n integers and finds the number of negative integers in the list:

1. Initialize a variable called count to 0.
2. Loop through the list of n integers:
  a. If the current integer is negative, increment the count variable by 1.
  b. Otherwise, continue to the next integer.
3. Return the count variable as the number of negative integers in the list.

This algorithm iterates through each integer in the list and checks if it's negative. If it is, it increments a count variable. At the end of the loop, the count variable contains the total number of negative integers in the list, which is returned as the output of the algorithm.

Know more about algorithm here;

https://brainly.com/question/22984934

#SPJ11

An algorithm that takes as input a list of n integers and finds the number of negative integers in the list:

1. Initialize a variable called count to 0.
2. Loop through the list of n integers:
  a. If the current integer is negative, increment the count variable by 1.
  b. Otherwise, continue to the next integer.
3. Return the count variable as the number of negative integers in the list.

This algorithm iterates through each integer in the list and checks if it's negative. If it is, it increments a count variable. At the end of the loop, the count variable contains the total number of negative integers in the list, which is returned as the output of the algorithm.

Know more about algorithm here;

https://brainly.com/question/22984934

#SPJ11

The test statistic for the Approximate Wald test is undefined. The score test is \([(\Sigmayi - n\lambda) / \sqrt{(n \lambda)}]^2.\)  The Wald test is \(W = (\theta - \theta_0) / SE(\theta)\). The likelihood ratio test is \(logL(\lambda) = \Sigma yi \times log(\lambda) - n\lambda - \Sigma log(yi!).\)

In order to find the test statistics for the given tests, we need to consider a sample of n independent and identically distributed random variables following a Poisson distribution with parameter λ.

i. Approximate Wald test:

The Wald test is used to test hypotheses about the parameters in a statistical model. In this case, we want to test the hypothesis that λ = 5. The test statistic for the approximate Wald test is calculated as:

\(W = (\lambda - \lambda_{0} ) / SE(\lambda)\)

where λ₀ is the hypothesized value of λ and SE(λ) is the standard error of λ. Since λ = 5 and n = 250, we can calculate the standard error using the formula:\(SE(\lambda) = \sqrt{(\lambda / n)}\). Plugging in the values, we have:

W = (5 - 5) / √(5 / 250) = 0 / 0 = undefined.

ii. Score test:

The score test is another statistical test used for hypothesis testing. The test statistic for the score test is calculated as:

\(S = (\partial logL(\lambda) / \partial\lambda)^2 / Var(\partial logL(\lambda) / \partial\lambda)\)

where logL(λ) is the log-likelihood function and \(Var(\partial logL(\lambda) / \partial \lambda)\) is the variance of the score function. For the Poisson distribution, the score function is \((\partial logL(\lambda) / \partial \lambda) = (\Sigma yi - n\lambda) / \lambda.\)

We can calculate the variance using the formula:

\(Var(\partial logL(\lambda) / \partial \lambda) = (\partial^2 \;logL(\lambda) / \partial \lambda^2) / n\).

For the Poisson distribution,\((\partial ^2logL(\lambda) / \partial \lambda^2) = -n / \lambda^2\).

Plugging in the values, we have:

S = \(((\Sigma yi - n\lambda) / \lambda)^2 / ((-n / \lambda^2) / n)\)

S = \(((\Sigma yi - n\lambda) / \lambda)^2 \times (\lambda^2 / -n)\)

S = \([(\Sigmayi - n\lambda) / \sqrt{(n \lambda)}]^2.\)

iii. Wald test:

The Wald test is used to test hypotheses about the parameters in a statistical model. The test statistic for the Wald test is calculated as:

\(W = (\theta - \theta_0) / SE(\theta)\)

where θ is the estimated parameter value, θ₀ is the hypothesized value of the parameter, and SE(θ) is the standard error of the estimated parameter. For the given question, it is not specified which parameter we are testing, so we cannot provide a specific test statistic for the Wald test.

iv. Likelihood ratio test:

The likelihood ratio test is used to compare the fit of two nested models, where one model is a restricted version of the other. The test statistic for the likelihood ratio test is calculated as:

LR = -2 * (logL(restricted) - logL(unrestricted))

where logL(restricted) is the log-likelihood of the restricted model and logL(unrestricted) is the log-likelihood of the unrestricted model. For the Poisson distribution, the log-likelihood function is given by:

\(logL(\lambda) = \Sigma yi \times log(\lambda) - n\lambda - \Sigma log(yi!).\)

We can calculate the log-likelihood for the restricted and unrestricted models using the given information and plug it into the formula to calculate the likelihood ratio test statistic.

To know more about Wald test refer here:

https://brainly.com/question/31992756#

#SPJ11

Fidelity has 175 different no-load mutual funds for investors to purchase. the funds numbers in the answer options provided are not obtained using the random number generator method and hence are incorrect.

If each fund is given a number from one to one hundred seventy-five, use the below to pick out a simple random sample of 3 funds (Be sure to start with the first number in the list and read across! The spaces have been included only to help you keep track of where you are.)387286 084913 141557 896084 260735 351186 403540 793138 427593 153408 420501

Fund numbers 084, 141, 153

From the above data, we need to pick out a simple random sample of 3 funds. Since there are 175 different no-load mutual funds, we can use the random number generator method to select three funds out of 175. The simple random sample can be obtained as follows:

Step 1: Assign each fund a number from 1 to 175.

Step 2: Use a random number generator to pick three random numbers between 1 and 175. For example, let us assume the three random numbers generated are 24, 88, and 112.

Step 3: Using the numbers generated, we can identify the corresponding funds in the list. For the above example, the three corresponding funds are 841436, 196453, and 329525.Note that the funds numbers in the answer options provided are not obtained using the random number generator method and hence are incorrect.

for more questions on mutual funds

https://brainly.com/question/8990439

#SPJ11

Using mathematical operations to evaluate the equations, the only equation that fits is m/10 + 4.7 = 3.7

An expression is an algebraic statement that is made up of constant, variables etc. An equation on the other hand is two equal expression often times, there's are unknown variables which the values makes them equal to one another.

In this problem, we have to plug the value of m = 10 in all equations and see which fits, or we can simply just solve for m

a) 5m + 5 = -40

5m = -40 - 5

5m = -45

m = -9

This does not fit

b) m/10 + 4.7 = 3.7

multiply through by 10

m + 47 = 37

m = 37 - 47

m = -10

The equation is true.

c)  m / 2 + 21 = 15

collect like terms

m / 2 = 15 - 21

m / 2 = -6

m = -12

This is false

d)

-49 + 3m = 72

3m = 72 + 49

3m = 121

m = 40.3

This is not true

Only m /10 + 4.7 = 3.7 is true for m = -10

Learn more on evaluating equation here;

https://brainly.com/question/13729904

#SPJ1

There were 70 oranges placed in each box.

To find out how many oranges were placed in each box, we need to divide the total number of oranges collected by the number of boxes. In this case, the total number of oranges collected is 140. Since there are two boxes, we divide 140 by 2 to find the number of oranges in each box.

140 ÷ 2 = 70

Therefore, there were 70 oranges placed in each box.

Learn more about number of boxes from the given link:

https://brainly.com/question/14156206

#SPJ11

If a power series matches a function f(x) exactly everywhere, then the radius of convergence is infinite.

This means that the power series converges for all values of x. In other words, the power series can be used to approximate the function f(x) with arbitrary accuracy for any value of x.

This is a very powerful tool in mathematics and has many practical applications in science, engineering, and other fields.

The proof that a power series with infinite radius of convergence matches a function f(x) exactly everywhere is based on the fact that a power series is a sum of infinitely many terms, each of which is a polynomial in x.

By adding up these polynomials, we can approximate any function f(x) to an arbitrary degree of accuracy. The only limitation is that we need to know the coefficients of the power series,

which can be obtained by differentiating or integrating the function f(x) or by using other mathematical techniques. Once we have the coefficients, we can plug them into the power series formula and get an exact match for the function f(x).

To know more about function click here

brainly.com/question/28193995

#SPJ11

Answer:

She drinks 6L of water during the 12 days

Step-by-step explanation:

500×12=6000ml

convert 6000ml into liters= 6 liters

Answer: 1/45

Step-by-step explanation:

From thw question, we are told that there are:

Yellow marbles =2

Pink marbles =3

Blue marbles = 5

Total marbles = 2+3+5 = 10

The probability of drawing the first yellow ball will be= 2/10

Since the ball is not replaced, that means there will be 9 balls left and 1 yellow ball left. Therefore, the probability of drawing the second yellow ball will be = 1/9

The probability of drawing two yellow balls if they're not replaced will now be:

= 2/10 × 1/9

= 2/90

= 1/45

Answer:

answer is 16

good day mate

B ] $ 4 .   Adult ticket cost $ 4 more than one child's ticket.

Linear equation refers to an equation between two variables that gives a straight line when plotted on a graph.

Let the cost of adult's ticket be x.

Let the cost of child's ticket be y.

The smith family paid a total of $25.50 for 2 adult and 3 children means,

2x + 3y = 25.50        ...(1)

The Jones family paid a total of $22.00 for 2 adult and 2 child movie tickets means,

2x + 2y = 22             ...(2)

Subtracting equation 2 from 1.

⇒ y = 3.5

Putting value of y in equation 2.

⇒  2x + 7 =22

⇒ 2x = 15

⇒ x = 7.5

Difference between adult ticket and child ticket = 7.5 - 3.5 = 4.

Hence, an adult ticket cost $ 4 more than one child's ticket.

To understand more about Simple equation refer -

https://brainly.com/question/26184005

#SPJ9

Answer:

60 x 0.90 = 54

54 questions correct.

Answer:

54

Step-by-step explanation:

90%= 0.9

0.9(60)=54

She answered 54 correctly.

Here are the two functions f(x) and g(x) whose composition are the given functions : a. f(x) = sin(x^2) and g(x) = 3x, and b. f(x) = |x| and g(x) = 5 + 2x

To identify the functions f(x) and g(x) whose composition results in the given functions, let's break down each part:

a. For the function y = 3sin(x^2), we can identify f(x) and g(x) as follows:
  - f(x) = sin(x^2)
  - g(x) = 3x

  By substituting g(x) into f(x), we get y = 3sin((3x)^2) = 3sin(9x^2).

b. For the function y = |5 + 2x|, we can identify f(x) and g(x) as follows:
  - f(x) = |x|
  - g(x) = 5 + 2x

  By substituting g(x) into f(x), we get y = ||5 + 2x|| = |5 + 2x|.

In summary:
a. f(x) = sin(x^2) and g(x) = 3x
b. f(x) = |x| and g(x) = 5 + 2x

These functions can be composed in such a way that the resulting functions match the given functions. Remember that composition involves substituting one function into another.

Learn more about composition from the given link:

https://brainly.com/question/30660139

#SPJ11

We must first calculate the area of a single tile in order to figure how many floor tiles are required to cover a space that is 1080 square meters.

Since the area of a parallelogram is equal to its base times its height, the tile's area is 24 x 10 cm, or 240 \(cm^{2}\).

Since one square meter equals 10,000 square centimeters, we divide by 10,000 to convert this area to square meters: 240 \(cm^{2}\) / 10,000 = 0.024 c\(m^{2}\)

Thus, a single tile has a surface area of 0.024 square meters.

We divide a room's 1080 square meters by a tile's area to determine how many tiles are required to completely cover the space:

1080 \(m^{2}\) / 0.024 \(m^{2}\)= 45,000

 Therefore ,45,000 floor tiles would be required to cover a space that is 1080 square meters in size.

To know more about parallelogram at :

brainly.com/question/1563728

#SPJ4

Answer:

(x-3) (x-2)

Step-by-step explanation:

\(x^{2}\) - 5x + 6

How to break down the equation and factorise it:

-3 x -2 = 6

-3 + -2 = -5

Final Answer:

(x-3) (x-2)

We Prοved that tanθ + cοtθ = secθcscθ using trigοnοmetry identified.

Trigοnοmetry is a branch οf mathematics that deals with the study οf angles, triangles, and their relatiοnships with each οther. It invοlves the study οf the prοperties and functiοns οf triangles, as well as the relatiοnships between angles and sides οf triangles.

Tο sοlve the equatiοn Tanθ + cοtθ = secθcscθ, we can start by expressing each term in terms οf sine and cοsine functiοns:

⇒ \($\mathrm{tan}\,\theta+\mathrm{cot}\,\theta\)

\($\Rightarrow\frac{\mathrm{sin}\ \theta}{\mathrm{cos}\,\theta}+\frac{\mathrm{cos}\,\theta}{\mathrm{sin}\,\theta}$\)

\($\Rightarrow{\frac{\sin^{2}\ \theta+\cos^{2}\!\theta}{\sin\theta.\cos\theta}}$\)

\($={\frac{1}{\sin\theta.\cos\theta}}$\)

= secθ·cscθ

Hence, Proved that tanθ + cotθ = secθcscθ

To know more about trigonometric visit:

https://brainly.com/question/29156330

#SPJ1

Complete question:

Prove that tanθ + cotθ = secθcscθ.