I’ll give brainliest help ASAP thank you so much:)

There are two cases when it might be inappropriate to use a linear regression equation for prediction despite significant correlation between two variables are Non-Linear Relationships ,  Outliers

1. Non-Linear Relationships: If the relationship between the two variables is non-linear, a linear regression equation will not accurately capture the relationship and should not be used for prediction.

For example, the relationship between the height and weight of a person might follow a quadratic or cubic relationship and thus, a linear regression equation would not provide accurate predictions.

2. Outliers: If there are outliers in the data, a linear regression equation may be inappropriately influenced by them, leading to inaccurate predictions.

For example, in a dataset of the relationship between a person's height and salary, the salary of a CEO might be an outlier and affect the linear regression equation, leading to inaccurate predictions for other employees.

In these cases, alternative regression models or data transformation techniques might be more appropriate.

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To derive a method of moments estimator (MME) for the parameter \($\theta$\), we equate the sample moments to their corresponding population moments and solve for \($\theta$.\)

The \($k$-\)th population moment of the distribution is given by:

\($\mu_k = E(X^k) = \int x^k f(x) dx$,\)

where \($f(x)$\) is the probability density function (pdf) of the distribution.

For the given distribution with pdf \($f(x) = \theta x^{\theta-1}$ for $0 < x < 1$, the $k$\)-th population moment can be calculated as:

\($\mu_k = \int x^k \theta x^{\theta-1} dx = \theta \int x^{k+\theta-1} dx = \theta \left[\frac{x^{k+\theta}}{k+\theta}\right] \bigg|_0^1 = \frac{\theta}{k+\theta}$,\)

where \($k$ and $\theta$\)  are positive parameters.

Now, equating the first sample moment \(($M_1$)\) to the first population moment \(($\mu_1$),\) we have:

\($M_1 = \frac{\sum(X_i)}{n} = \frac{\theta}{1+\theta}$,\)

where \($n$\) is the sample size.

Solving the equation for \($\theta$\), we obtain:

\($\theta = \frac{M_1}{1 - M_1}$.\)

Therefore, the method of moments estimator (MME) for the parameter \($\theta$\) is:

\($\hat{\theta} = \frac{M_1}{1 - M_1}$.\)

This serves as a moment-based estimator for the parameter \($\theta$\) in the given distribution.

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Answer:yes

Step-by-step explanation:yes of course (i just want points)

Answer:

18.41

Step-by-step explanation:

\(x^{2} = 12^{2} + 8^{2} - 2(12)(8)(cos 133)\\\\x= \sqrt{338.94} = 18.41\)

Answer:

u ≈ 11

Step-by-step explanation:

10² = u² - 2(5)(2)

100 = u² - 20

120 = u²

u = \(\sqrt{120}\)

u = \(\sqrt{4}\)\(\sqrt{30}\) = 2\(\sqrt{30}\) which is 10.95

Given problem, To find:1. The number of positive three-digit integers that are multiples of 7.2. The probability that a randomly chosen positive three-digit integer is a multiple of 7.

Solution:1. To find the number of positive three-digit integers that are multiples of 7:We need to find the largest 3-digit multiple of 7 and the smallest 3-digit multiple of 7. Largest 3-digit multiple of 7 is 994 and the smallest 3-digit multiple of 7 is 105.  Multiples of 7 can be obtained by adding 7 to the previous number.

Largest 3-digit multiple of 7 = 994. Smallest 3-digit multiple of 7 = 105. Let's subtract both the above numbers to get the total number of positive three-digit integers that are multiples of 7.994 - 105 = 889.

Hence, there are 889 positive three-digit integers that are multiples of 7.2. To find the probability that a randomly chosen positive three-digit integer is a multiple of 7: Total number of three-digit integers = 999 - 100 + 1 = 900. Number of positive three-digit integers that are multiples of 7 = 889. We need to find the probability that a randomly chosen positive three-digit integer is a multiple of 7. P(positive three-digit integer is a multiple of 7) = number of positive three-digit integers that are multiples of 7/ total number of three-digit integers⇒ P(positive three-digit integer is a multiple of 7) = 889/900⇒ P(positive three-digit integer is a multiple of 7) = 0.987. Hence, the probability that a randomly chosen positive three-digit integer is a multiple of 7 is 0.987.

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Answer:

8 of 10 free throws

Step-by-step explanation:

10/15 is .6666667 or about 67%

But 8/10 is .8 or 80%

80% > 60%

Answer:

\( \frac{1}{13} \)

Step-by-step explanation:

\( \frac{35}{65} \times \frac{1}{7} \\ = \frac{5}{65} \\ = \frac{1}{13} \)

This is your answer :))

Answer:

270

Step-by-step explanation:

Area is length times width; 15 times 18 = 270

The equation of the circumference of a circle in terms of \(\pi\) is \(2\pi r\) or \(\pi d\).

The circumference for a circle with diameter 10 is \(10\pi\).

The circumference for a circle with diameter 19 is \(19\pi\).

The circumference for a circle with diameter 30 is \(30\pi\).

The circumference for a circle with diameter 16 is \(16\pi\).

Relatively easy, right?

The equation of the area of a circle in terms of \(\pi\) is \(\pi r^2\).

The area of a circle with radius 5 is \(25\pi\).

The area of a circle with radius 9.5 is \(90.25\pi\).

The area of a circle with radius 15 is \(225\pi\).

The area of a circle with radius 8 is \(64\pi\).

Hope this helped!

(By the way, I don't know why you're using hard formulas for trying to find the radius or diameter. The diameter is simply twice the radius, and the radius is simply half the diameter.)

Answer:

Circumference = 10\(\pi\), 19\(\pi\), 30\(\pi\), 16\(\pi\)

Area = 25\(\pi\), 90.25\(\pi\), 225\(\pi\), 64\(\pi\)

Step-by-step explanation:

For the first row we have the radius which is 5, the diameter is 10. The formula for circumference is 2\(\pi\)r. So for this one its gonna be 2\(\pi\)5 or 10\(\pi\)

radius = 5

diameter = 10

circumference = 2\(\pi\)5 or 10\(\pi\)

area = \(\pi\)\(5^{2}\) or 25\(\pi\)

for the second row

radius = 9.5

diameter = 19

circumference = 2\(\pi\)9.5 or 19\(\pi\)

area = \(\pi\)\(9.5^{2}\) or 90.25\(\pi\)

for the third row

radius = 15

diameter = 30

circumference = 2\(\pi\)15 or 30\(\pi\)

area = \(\pi\)\(15^{2}\) or 225\(\pi\)

for the fourth row

radius = 8

diameter = 16

circumference = 2\(\pi\)8 or 16\(\pi\)

area = \(\pi\)\(8^{2}\) or 64\(\pi\)

\(\begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{60\% of 15}}{\left( \cfrac{60}{100} \right)15}\implies 9~\hspace{7em} \stackrel{15-9}{6}\)

Answer:

-9

Step-by-step explanation:

Using the Law of Syllogism, we can form a new conditional statement based on the given pair of true statements: "If she obtains an engineering degree, then she will earn more than $50,000 per year."

The Law of Syllogism allows us to combine two conditional statements to form a new conditional statement. In this case, we can use the given statements:

If she obtains an engineering degree, then she will be hired as an engineer.

If she is hired as an engineer, then she will earn more than $50,000 per year.

By applying the Law of Syllogism, we can combine these two statements to form a new conditional statement: "If she obtains an engineering degree, then she will earn more than $50,000 per year."This new statement follows logically from the original statements. It means that if she successfully completes her engineering degree, it implies that she will be hired as an engineer and, consequently, earn more than $50,000 per year.

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The points A', B', and C' are  (3, 1), (0, 3) and (-2, 4) respectively. The solution has been obtained by using the concept of transformation.

What is transformation?

Transformations allow for the translation, rotation, and reflection of shapes on a coordinate plane. Any line, point, or vector can be rotated, translated, or reflected.

We are given coordinates of triangle ABC as A (1, -3), B (3, 0) and C (4, -2).

Now, we need to rotate the triangle ABC 90 degrees about the origin.

We know that the rotation rule for rotating 90 degrees about the origin is that (x, y) becomes (y, -x).

So, from this we get the coordinates as

A' (3, -1)

B' (0, -3)

C' (-2, -4)

Now, on reflecting it over the x - axis, we get

A' (3, 1)

B' (0, 3)

C' (-2, 4)

Hence, the points A', B', and C' are  (3, 1), (0, 3) and (-2, 4) respectively.

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In both questions, two triangles are not congruent as explained below.

We know for congruency of triangles we need at least three angles or sides or both of the two triangles' corresponding three sides or angles or both similar to each other.

In the first question, there are two right-angle triangles that have two sides corresponding to each other that is similar and a right angle but in the case of a right-angle triangle corresponding hypotenuse should be similar and one of the legs and a right angle is already there.

So, They are not congruent.

In the second question, we have one side and one angle similar to the corresponding side and angle of the other triangle but we need at least three sides or angles or both to prove congruency.

So, they are also not congruent.

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You would need a sample size of at least 4 aspirin tablets to obtain a 95% confidence interval with a margin of error no larger than 1 mg.

To determine the required sample size for obtaining a 95% confidence interval with a margin of error no larger than 1 mg for the weight of aspirin tablets, you need to consider the variability of the population and the desired level of confidence.

Here's a general formula to calculate the sample size required:

n = (Z * σ / E)²

Where:

n is the sample size

Z is the z-score corresponding to the desired confidence level (for a 95% confidence level, Z ≈ 1.96)

σ is the estimated standard deviation of the population

E is the desired margin of error

To determine the sample size, you need an estimate of the standard deviation of the population. If you have this information, you can substitute it into the formula. Otherwise, you can use a conservative estimate or conduct a pilot study to estimate the standard deviation.

For example, let's assume you estimate the standard deviation of the weight of aspirin tablets to be 2 mg. Plugging the values into the formula, you get:

n = (1.96 * 2 / 1)² = 3.8416 ≈ 4

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Answer:

64.5668 inches tall

Step-by-step explanation:

Answer:

  NK = 26

Step-by-step explanation:

You have a triangle with the centroid identified and all medians drawn. You are given IK = 52 and want NK, where point N is the intersection of median JN with side IK.

The centroid of a triangle is the point where the medians intersect. It divides each median in the ratio 2:1.

A median of a triangle joins a vertex with the midpoint of the opposite side. Here, that means point N is the midpoint of side IK.

IK is given as length 52, so each half of that segment is 52/2 = 26.

  IN = NK = 26

Answer:

N+1

Step-by-step explanation:

It begins with = 2

then n+1=3

then n+2=4 and so on it is n+1

The distance from home plate to second base is 180 feet, which is double the distance from home plate to first base.

A baseball diamond is a square with four bases, with home plate in the middle. 90 feet separate first base from home plate, and 90 more feet separate first base from second base. Therefore, the total distance from home plate to second base is twice that distance, or 180 feet. The same applies to all of the bases; the distance between them is always 90 feet, so the total distance from home plate to any base is twice that of the distance from home plate to first base. This means that the distance from home plate to second base, third base, and home plate is all 180 feet.

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The probability of of a random student having blue eyes and dark hair

 is 35% .

let consider the total students in the school be (U) = 100%

out of them ,

students having blue eyes (A) = 60%

students having  dark hair (B) = 55%

students with neither blue eyes nor dark hair (A∪B)' = 20%

let the students with blue eyes and dark hair be (A∩B) = x %

Then according to the set theorem

U = n(A∪B) + n(A∪B)'

U = n(A) + n(B) - n(A∩B) + n(A∪B)'

100 = 60 + 55 - x +20

∴ x = 60 + 55 +20 - 100

x = 35 %

So the probability of random student having blue eyes and dark hair is 35% .

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Answer:

tthe middle graph.

Step-by-step explanation:

rise over run which is 3/4. so you start at (0,0) and go up 3 and over 4 and then down 3

Answer:

D) 2275

Step-by-step explanation:

Step-by-step explanation:

hope it's helpful for you

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Hey there!

Point D is located at point (5, -2)

In coordinates, the first number represents the x-coordinate, and the second number represents the y-coordinate. (TIP: YOU MUST START AT THE ORIGIN, OR (0, 0). In the x-coordinate, you go left/right that number of spaces, left for negative and right for positive. For the y-coordinate, you go up/down that number of spaces, down for negative and up for positive. This means that the point (5, -2) is 5 units right and 2 units down, which lands on point D.

Hope it helps and have an amazing day!

Answer:

130°

Step-by-step explanation:

20° + 30° =50°

a triangles full angle is 180°

180° - 50° = 130°

The number of inches of the ribbon that Rina needs for putting ribbon along the outside edge of the board is 120 inches.

Given that,

A classroom board is 32 inches wide and 28 inches tall.

Rina is putting ribbon along the outside edge of the board.

We know that classroom board is in the shape of a rectangle.

Length of the board = 32 inches

Width of the board = 28 inches

We have to find the perimeter of the board.

Perimeter = 2 (length + width)

                = 2 (32 + 28)

                = 120 inches

Hence the total length of the ribbon needed is 120 inches.

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The percentage of people that did not use coupon is 60%.

percentage is a number or ratio that represents a fraction of 100. It is one of the ways to represent a dimensionless relationship between two numbers; other methods include ratios, fractions, and decimals. Percentages are often denoted by the symbol "%" written after the number.

Number of persons that used coupon = 120

Total number of customers = 300

Number of customers without coupon  = 300 - 120 which is 180

Percentage of customers without coupon is 180/300 x 100% = 60%

In conclusion 60% did not use a coupon for purchase

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Answer:

1 - 1/2 = 1/2

Step-by-step explanation:

The value of opposite side of angle θ would be,

⇒ EF

Since, A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.

We have to given that,

A right triangle EFD is shown in figure.

And, At angle E, right angle is shown.

We know that;

The Opposite side of a angle is called perpendicular side.

Hence, The value of opposite side of angle θ would be,

⇒ EF

Thus, Option A is true.

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