What is true about sampling in statistics?
A. As the sample size increases, the variability increases
B. Sample parameters vary and are known
C. Sample Values are estimated from known population

Answer: letter b

Step-by-step explanation:

Answer:

Q' (0, 1)

Step-by-step explanation:

(x, y) → (0.5x, 0.5y) <== substitute 0 for x and 2 for y

(0, 2) → (0.5(0), 0.5(2)) <== multiply

(0, 2) → (0, 1)

Hope this helps!

Answer:

A and C

Step-by-step explanation:

Lawson: 5x3=15

Rhett: 4x4=16

Wynn: 5x3=15

Answer: you will subtract 14 from 6 and you would get 8

Step-by-step explanation: So he is 8 years old.

The homogeneous system of linear equations has a solution space with a basis of {(1, 2, -1)}. The dimension of the solution space is 1.

To find a basis for the solution space of the given homogeneous system of linear equations, we need to solve the system and express the solutions in terms of a linear combination of vectors.

The system of equations is as follows:

Equation 1: -x + y - z = 0

Equation 2: 2x - y = 0

Equation 3: 2x - 3y - 4z = 0

We can start by using the equations to eliminate variables. From Equation 2, we can express y in terms of x as y = 2x. Substituting this into Equation 1 gives us -x + 2x - z = 0, which simplifies to x - z = 0. Rearranging this equation, we have x = z.

Now, we can express the variables in terms of a single parameter. Let's choose z as the parameter. Thus, x = z and y = 2x = 2z.

Now, we can express the solutions in vector form as (x, y, z) = (z, 2z, z) = z(1, 2, 1). This means that the solution space is spanned by the vector (1, 2, 1).

To find the basis for the solution space, we need to check if the vector (1, 2, 1) is linearly independent. Since it is the only vector spanning the solution space, it is linearly independent. Therefore, the basis for the solution space is {(1, 2, 1)}.

The dimension of the solution space is equal to the number of vectors in the basis, which in this case is 1. Therefore, the dimension of the solution space is 1.

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The formula for the volume of a cone is:

V = (1/3)πr²h

where r is the radius of the base, h is the height of the cone, and π is pi.

In this case, the slant height is given as 17 cm, which we can use with the radius to find the height of the cone using the Pythagorean theorem:

h² = s² - r²

h² = 17² - 8²

h² = 225

h = 15

Now that we have the height, we can plug in the values for r and h into the formula for the volume:

V = (1/3)π(8²)(15)

V = (1/3)π(64)(15)

V = (1/3)(960π)

V = 320π

Therefore, the volume of the cone is 320π cubic cm. Answer: 320π.

Answer:

y = 4x + 1

Y values increase by 4, X values increase by 1.

M or slope, = 4/1 or 4

Y-intercept is when x = 0

When x = 0 in this case, y = 1.

So,

y = 4x +1

Answer:

y = 4x + 1

Step-by-step explanation:

This is the y = mx + b format, hopefully its useful for you! It's a linear equation because all the values grow at a constant rate.

The y-intercept is 1 and it's rise over run which means that you start at 1 on your y-intercept when graphing and then rise 4 and run 1 to the right because it's a positive slope.

One common algorithm to merge k sorted lists into one sorted list with a time complexity of O(n LG k) is the "k-way merge" algorithm.

The algorithm's steps are:Create a min-heap and fill it with the first item from all k input lists.There will be k maximum elements in the min-heap.

But the min-heap is not completely full:

Add the minimum element to the output list after removing it from the min-heap.

Add the subsequent element from the list from which the minimal element was removed to the min-heap if it still contains items.

Get the output list back.Below is an analysis of this algorithm's time complexity:

The min-heap initialization process requires O(k) time.

Each element is added to and deleted from the min-heap exactly once after visiting each of the k input lists precisely once.

Hence, O represents the total number of operations carried out on the min-heap (n LG k).

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Answer:

a) 2a + 3c = $44.50

     a + 2c + $25.50

b) $19

Step-by-step explanation:

Simultaneous equations. A = adult. C = children

2a + 3c = $44.50 (EQUATION 1)

a + 2c = $25.50 (EQUATION 2)

Now solve this using the method of elimination:

2a + 3c = $44.50 (EQUATION 1)

a + 2c = $25.50 (EQUATION 2)

Multiply equation 2 by 2 so that both equations have the same a coefficient.

2a + 4c = $51 (NEW EQUATION 2)

Now subtract equation 1 from equation 2:

2a - 2a + 4c - 3c = $51 - $44.50 (2a cancels out)

c = $6.50

Now substitute c into one of the equation, in this case, I'm using original equation 2.

a + 2($6.50) = $25.50

a + $13 = $25.50

a = $12.50

Total cost of one adult and child = $6.50 + $12.50

                                                       = $19

Answer:

option d

Step-by-step explanation:

hope this helps

The equation of the line with a slope of 1/3 and a y-intercept of -4 is y = (1/3)x - 4.

The equation of a line can be expressed in the slope-intercept form, which is y = mx + b, where m is the slope of the line and b is the y-intercept. In this problem, the slope is given as 1/3 and the y-intercept is given as -4. Substituting these values into the slope-intercept form, we get the equation of the line as y = (1/3)x - 4. This equation shows that the line has a slope of 1/3, which means that for every increase of 1 unit in the x-coordinate, the y-coordinate increases by 1/3 unit, and a y-intercept of -4, which means that the line crosses the y-axis at the point (0, -4).

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An equation of the tangent line to the curve \(x e^y+y e^x=4\) at the point (0, 4) is \(y=-(4+e^4) x+4\).

A tangent is described as a line that intersects a circle or an ellipse only at one point. If a line touches a curve at P, the point "P" is known as the point of tangency.

Now according to the question;

To obtain the tangent at a given point, we must first obtain the slope at that point by obtaining the differentiation value at that point  \(\left.y^{\prime}\right|_{x=0, y=4}\) as-

Consider the given equation;

\(x e^y+y e^x=4\)

Differentiate both side with respect to x;

\(\begin{aligned}&\frac{d}{d x}\left(x e^y+y e^x\right)=\frac{d}{d x} 4 \\&\frac{d}{d x} x e^y+\frac{d}{d x} y e^x=0\end{aligned}\)

Now apply product rule;

\(\begin{aligned}&e^y \frac{d}{d x} x+x \frac{d}{d x} e^y+e^x \frac{d}{d x} y+y \frac{d}{d x} e^x=0 \\&e^y \frac{d}{d x} x+x \frac{d}{d y} e^y \cdot y^{\prime}+e^x y^{\prime}+y \frac{d}{d x} e^x=0\end{aligned}\)

Applying exponential and power rule;

\(\begin{aligned}&e^y \cdot 1+x e^y \cdot y^{\prime}+e^x y^{\prime}+y e^x=0 \\&\left(x e^y+e^x\right) y^{\prime}=-y e^x-e^y\end{aligned}\)

Solve the value of y'

\(y^{\prime}=\frac{-y e^x-e^y}{x e^y+e^x}\)

Now, find the value of slope m.

\(m=\left.y^{\prime}\right|_{x=0, y=4}\)

\(\frac{-4 \cdot e^0-e^4}{0 e^4+e^0}=-4-e^4\)

Now, using the point-slope formula, obtain the line equation as follows.

\(\begin{aligned}&\left(y-y_1\right)=m\left(x-x_1\right) \\&(y-4)=-(4+e^4) \cdot(x-0) \\&y=-(4+e^4) x+4\end{aligned}\)

Therefore, an equation of the tangent line to the curve is   \(y=-(4+e^4) x+4\).

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Yes, there exists a function f that satisfies the given conditions: f(0) = 21, f(2) = 4, and f(9(x)) < 2 for all x.

f(x) = { 21, if x = 0
        4, if x = 2
        (2/9)x, otherwise

To construct this function, we can use piecewise linear functions. Let's define the function f as follows:
f(x) = { 21, if x = 0
        4, if x = 2
        g(x), otherwise
where g(x) is a function that satisfies the inequality f(9(x)) < 2 for all x.
Step 1: Define a function g(x) for the inequality f(9(x)) < 2 for all x:
Since we need f(9(x)) < 2 for all x, we can define g(x) as a linear function with a slope less than 2/9.
g(x) = (2/9)x
Step 2: Combine f(x) and g(x) to create the desired function:
Now, we can redefine our function f(x) by combining the conditions for f(0), f(2), and g(x):
f(x) = { 21, if x = 0
        4, if x = 2
        (2/9)x, otherwise
This function satisfies all the given conditions. It has f(0) = 21, f(2) = 4, and f(9(x)) = (2/9)(9x) = 2x < 2 for all x (since x can be any real number).

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The  representation of the constraint for minimum exposure quality depends on the specific domain or context, and it involves defining the relevant metrics or criteria that need to be met to ensure the desired level of exposure quality.

What is constraint?

A constraint is a limitation or restriction that is imposed on a system, process, or design. It defines boundaries, conditions, or requirements that must be satisfied in order to achieve a desired outcome or meet specific objectives.

For instance, the minimum exposure quality restriction in photography or videography may be represented as a minimally acceptable degree of brightness, contrast, color correctness, or sharpness in the photos or videos. For these particular metrics, the limitation may be represented as numerical values or ranges, such as a minimum acceptable brightness level of X lumens, a minimum acceptable contrast ratio of Y:1, or a minimum acceptable color accuracy delta E value of Z.

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Answer:

1000

Step-by-step explanation:

25*4 = 100

100*10=1000

I hope this helped and please mark me as brainliest!

Answer:

1,000

Step-by-step explanation:

200*4=800

50*4=200

0*0=0

800+200+0=1,000

Answer:

Step-by-step explanation:

Given:

61% of people own dogs.

So,

Probability of one person having dog

=61/100

=0.61

If we choose two people randomly the probability of one person having a dog is 0.61. Also the two events are independent of each other.

So the probability of the second person choosing a dog will also be 0.61.

*P(A AND B) = P(A) × P(B)*

Probability of both having a dog is,

P(A∩B) =0.61 × 0.61

= 0.3721

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The probability that a box selected has 50 pieces is 0.179

The percentage of the production will be rejected is 22.8%

100360 of 130,000 are accepted

From the question, we have the following parameters that can be used in our computation:

Mean = 48

SD = 4.3

The z-score is then calculated as

z = (50 - 48)/4.3

So, we have

z = 0.465

The probability is then calculated as

P = P(z = 0.465)

This gives

P = 0.179

This means that

P(44 < x < 55)

So, we have

z = (44 - 48)/4.3 = -0.930

z = (55 - 48)/4.3 = 1.627

The probability is

P = 1 - (-0.930 < z < 1.627)

So, we have

P = 77.2%

This means that

Rejected = 1 - 77.2% = 22.8%

This means that 22.8% is rejected

Here, we have

Accepted = 77.2% * 130,000

Evaluate

Accepted = 100360

This means that 100360 are accepted

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Answer:

2 hours

Step-by-step explanation:

Each hour, Sam earns $9

So 2 hours, Sam will earn 2 * $9 = $18

Thus, Sam will earn $18 in 2 hours working at the drugstore.

Answer:

Step-by-step explanation:

Answer:

-15 < x

Step-by-step explanation:

Answer:182 is correct

Step-by-step explanation:

hello

to solve this question, we just have to follow thr instructions as it is

the answer to this question is 6t/s

Answer:

s=-20/3

Step-by-step explanation:

Line the numbers

Answer:

s=-\(\frac{20}{3}\)

Step-by-step explanation:

Exact Form:

s=−\(\frac{20}{3}\)

Decimal Form:

s=−6.6 repeating

Mixed Number Form:

s=−6\(\frac{2}{3}\)

The decrease in the number of pirates in the world correlates with an increase in mean global temperature is an example of a spurious correlation.

While there might be a statistical relationship between these two variables, it is not a causative one, and the correlation is likely coincidental.This is the importance of distinguishing between correlation and causation. In this case, the decrease in the number of pirates and the increase in mean global temperature are unrelated factors that happen to show a correlation when observed over time.

This is often used humorously to demonstrate the fallacy of assuming causation based solely on a correlation. It underscores the need for careful analysis and consideration of other relevant factors before making conclusions about causal relationships. In reality, factors such as greenhouse gas emissions, deforestation, and industrialization have a more significant impact on global temperature trends than the number of pirates in the world.

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Pair of points representing parallel line to the x-axis from the given pairs is equal to option a. (3.2, 7) and (5, 7).

As given in the question,

Line parallel to the x-axis has slope = 0

Calculate the slope of each pair of points :

a. (3.2, 7) and (5, 7)

Slope = (y₂ - y₁)/ (x₂ - x₁)

          = ( 7- 7) / ( 5 - 3.2)

          = 0

Pair of points represents parallel line to x-axis.

b. (8, 8.4) and (8, 8.8)

Slope = (y₂ - y₁)/ (x₂ - x₁)

          = ( 8.8- 8.4) / ( 8 - 8)

          = not defined

Pair of points is not parallel to x-axis.

c. (6 1/2, 12) and (6.2, 11)

Slope = (y₂ - y₁)/ (x₂ - x₁)

          = ( 11- 12 / ( 6.2 - 6.5)

          = 1/ 0.3

         = 10/3

Pair of points is not parallel to x-axis.

Therefore, pair of points represents parallel line to x-axis is equal to

option a. (3.2, 7) and (5, 7).

The complete question is:

For each pair of points below, think about the line that joins them. For which pairs is the line parallel to the x-axis? Circle your answer(s). Without plotting them, explain how you know.

a. (3.2, 7) and (5, 7)

b. (8, 8.4) and (8, 8.8)

c. (6 1/2, 12) and (6.2, 11)

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Answer:

6 weeks

Step-by-step explanation:

100 + 5x = 10 + 20x

15x = 90

x=6

Answer:

3rd Definition

Step-by-step explanation:

A sphere is a three dimensional and round, and every point on its surface is the same distance from its center.

Answer:

3rd one

hope it helps

U 2 can help me by marking as brainliest......

Step-by-step explanation:

Angles A and B are Alternate Exterior angles, therefore they are congruent.

=> 8x + 6° = 4x + 38°

=> 4x = 32°, x = 8°

Hence Angle B = 4(8°) + 38° = 70°.

Question: In a sale, the price of a book is reduced by 25%. The price of the book in the sale is £12. Work out the original price of the book

Answer: £16

Step-by-step explanation:

To determine the original price of the book, we can use the fact that the sale price is 75% (100% - 25%) of the original price. Let's denote the original price as x.

75% of x = £12

To solve for x, we can set up the equation:

0.75x = £12

To isolate x, we divide both sides of the equation by 0.75:

x = £12 / 0.75

x = £16

Therefore, the original price of the book was £16.

Answer:

Step-by-step explanation:

42=8x+10

42+10=8x

52=8x

x=52/8

x=6.5

Answer:

i think its the 2nd and 4th

Step-by-step explanation: