PLEASE HELP ASAP! need answer now!

The following distributions has a mean that varies

II. The distribution of sample data

III. The sampling distribution of the sample mean

The correct answer is option v) II and III."

Here, we have,

In the context of statistical distributions:

I. The population distribution refers to the distribution of a specific variable within the entire population. The mean of the population distribution which is fixed and does not vary.

II. The distribution of sample data refers to the distribution of a variable within a specific sample. The mean of the sample data can vary from one sample to another.

III. The sampling distribution of the sample mean refers to the distribution of sample means taken from multiple samples of the same size from a population. The mean of the sampling distribution of the sample mean is equal to the population mean, but the individual sample means can vary from sample to sample.

Therefore, the mean varies in both the distribution of sample data (II) and the sampling distribution of the sample mean (III), but not in the population distribution (I).

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In Milgram's first study of obedience, the majority of teachers initially complied but refused to deliver more than slight levels of shock.

In Milgram's first study of obedience, participants were assigned the role of 'teacher' and were instructed to administer electric shocks to a 'learner' whenever they answered a question incorrectly. The shocks ranged from mild to severe, with the highest level labeled as 'XXX.' The learner was actually an actor, and no real shocks were administered.

The study found that the majority of teachers initially complied with the experimenter's orders and delivered shocks, but they refused to deliver more than slight levels of shock. This suggests that while they were willing to follow the instructions to some extent, they had moral reservations about causing significant harm to another person.

It is important to note that the study has been criticized for ethical concerns and the potential psychological harm it may have caused to participants. However, it remains a significant contribution to our understanding of obedience and the power of authority figures.

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Answer:

Step-by-step explanation:

14.Since the most common denominator is 40 lets multiply all the denominators to equal all to 40

Evita:24/40

Jack:25/40

Keisha:30/40

Sinjo:20/40

Therefore Keisha drank the most bottles

15. The most common denominator for 5/8 and 2/3 is 24 lets have both denominators equal to 24

5/8 -> 15/24

2/3-> 16/24

Therefore flour is the greater amount

16.Multiply the denominators equal to 6 since thats the least common denominator

1/2->3/6 | 2/3->4/6

Therefore peanuts is the greater ingredient amount

17.If you multiply both the numerator and denominator of a fraction by the same non-zero number, the fraction remains unchanged in value. Therefore, equivalent fractions can be created by multiplying (or dividing) the numerator and denominator by the same number.

18.We can compare fractions with unlike denominators by finding the least common denominator and making equivalent fractions. When the denominators are the same, the number with the larger numerator is the larger fraction.

Answer:

above sea level

Step-by-step explanation:

Answer:

x + x-1 + x-2 + x-3 =54.

x-1

Answer:

15

Step-by-step explanation:

Let the consecutive numbers be x, x + 1, x + 2, x + 3

==========

Greatest of the 4 integers:

2. Using proportion, the value of x = 38, the length of FC = 36 in.

3. Applying the angle bisection theorem, the value of x = 13. The length of CD = 39 cm.

The Angle Bisector Theorem states that in a triangle, an angle bisector divides the opposite side into segments that are proportional to the lengths of the other two sides of the triangle.

2. The proportion we would set up to find x is:

(x - 2) / 4 = 27 / 3

Solve for x:

3 * (x - 2) = 4 * 27

3x - 6 = 108

3x = 108 + 6

Simplifying:

3x = 114

x = 114 / 3

x = 38

Length of FC = x - 2 = 38 - 2

FC = 36 in.

3. The proportion we would set up to find x based on the angle bisector theorem is:

13 / 3x = 7 / (2x - 5)

Cross multiply:

13 * (2x - 5) = 7 * 3x

26x - 65 = 21x

26x - 21x - 65 = 0

5x - 65 = 0

5x = 65

x = 65 / 5

x = 13

Length of CD = 3x = 3(13)

CD = 39 cm

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Answer:

there will only be one 3

Step-by-step explanation:

see cause the first 3 of both numbers are 2 but only the last one of both numbers are 3 .

Step-by-step explanation:

To find the product, we'll be using the FOIL method.

F - Front.

O - Outer.

I - Inner.

L - Last.

When applying the FOIL method:

\(a(a) + - 3(a) + 5(a) - 3(5)\)

Multiplying:

\( {a}^{2} - 3a + 5a - 15\)

Combine Like-Terms:

\( {a}^{2} + 2a - 15\)

a^2 + 2a - 15 is your product.

Answer:

B

Step-by-step explanation:

In each one, they add two arrows that are to the right as much as they possibly can be

Answer:

x = 24

Step-by-step explanation:

if a and b are parallel then

62 and 5x - 2 are same- side interior angles and sum to 180° , that is

5x - 2 + 62 = 180

5x + 60 = 180 ( subtract 60 from both sides )

5x = 120 ( divide both sides by 5 )

x = 24

thus for a to be parallel to b , then x = 24

The partial derivative diffusivity equation for spherical flow is ∂²p/∂r² + (1/r) ∂p/∂r = ϕμC/k ∂p/∂t, and for hemispherical flow, it is the same equation.

1. The partial derivative diffusivity equation for spherical flow is derived from the spherical coordinate system and applies to radial flow in a spherical geometry. It can be expressed as ∂²p/∂r² + (1/r) ∂p/∂r = ϕμC/k ∂p/∂t.

2. The partial derivative diffusivity equation for hemispherical flow is derived from the hemispherical coordinate system and applies to radial flow in a hemispherical geometry. It can be expressed as ∂²p/∂r² + (1/r) ∂p/∂r = ϕμC/k ∂p/∂t.

1. For the derivation of the partial derivative diffusivity equation for spherical flow, we consider a spherical coordinate system with the radial direction (r), the azimuthal angle (θ), and the polar angle (φ). By assuming steady-state flow and neglecting the other coordinate directions, we focus on radial flow. Applying the Laplace operator (∇²) in spherical coordinates, we obtain ∇²p = (1/r²) (∂/∂r) (r² ∂p/∂r). Simplifying this expression, we arrive at ∂²p/∂r² + (1/r) ∂p/∂r.

2. Similarly, for the derivation of the partial derivative diffusivity equation for hemispherical flow, we consider a hemispherical coordinate system with the radial direction (r), the azimuthal angle (θ), and the elevation angle (ε). Again, assuming steady-state flow and neglecting the other coordinate directions, we focus on radial flow. Applying the Laplace operator (∇²) in hemispherical coordinates, we obtain ∇²p = (1/r²) (∂/∂r) (r² ∂p/∂r). Simplifying this expression, we arrive at ∂²p/∂r² + (1/r) ∂p/∂r.

In both cases, the term ϕμC/k ∂p/∂t represents the source or sink term, where ϕ is the porosity, μ is the fluid viscosity, C is the compressibility, k is the permeability, and ∂p/∂t is the change in pressure over time.

These equations are commonly used in fluid mechanics and petroleum engineering to describe radial flow behavior in spherical and hemispherical geometries, respectively.

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We are given the following information

Line AC and EG are perpendicular.

Angle FBC is the complement of the angle ABD.

Angle FBC = (x + 4)°

Angle ABD = (5x - 10)°

We are asked to find the angle EBF.

Recall that when two angles are complementary then they add up to 90°

So we can write

Let us substitute the given values and solve for x.

So the angle FBC is

Since we know that lines AC and EG are perpendicular so the angle FBC and angle EBF must add up to 90°

Therefore, the angle EBF is 70°.

Approximately 1613 students went to the talent show.

We have,

To find the number of students who went to the talent show, we need to calculate the percentage of students from the total number of students in the school.

Let's calculate the number of students for each year:

2008: 84% of 360 students = 0.84 x 360 = 302.4 students

2009: 91% of 360 students = 0.91 x 360 = 327.6 students

2010: 92% of 360 students = 0.92 x 360 = 331.2 students

2012: 87% of 360 students = 0.87 x 360 = 313.2 students

2013: 94% of 360 students = 0.94 x 360 = 338.4 students

To find the total number of students who went to the talent show, we add up the values for each year:

= 302.4 + 327.6 + 331.2 + 313.2 + 338.4

= 1612.8 students

Therefore,

Approximately 1613 students went to the talent show.

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Answer:

Hunting

Step-by-step explanation:

Answer:

Hunting

Step-by-step explanation:

You can tell by the horse and the spear points!

Answer:

X=-5/3

Step-by-step explanation:

Answer:

The area of the circular top surface of the trampoline is approximately 113.1 square feet.

Step-by-step explanation:

To find the area of the circular top surface of the trampoline, we can use the formula for the area of a circle:

Area = π * r^2

Given that the diameter of the trampoline is 12 feet, we can find the radius (r) by dividing the diameter by 2:

Radius (r) = Diameter / 2 = 12 ft / 2 = 6 ft

Now, we can substitute the value of the radius into the formula to calculate the area:

Area = π * (6 ft)^2 = π * 36 ft^2 ≈ 113.1 ft^2

Therefore, the area of the circular top surface of the trampoline is approximately 113.1 square feet.

9514 1404 393

Answer:

  range

Step-by-step explanation:

An ordered pair is ...

  (element of domain, element of range)

Then the set of all "element of range" is the range.

_____

Additional comment

To understand math, it is helpful to understand the vocabulary of math. It is difficult to obtain any meaning from a communication when one doesn't know the language.

The height of water is increasing at the rate of 0.0194 meters per minute.

In mathematics, comparing two related quantities stated in different units is known as a rate.

If the denominator of the ratio is stated as a single unit of one of these variables and it is assumed that this quantity may be changed systematically, the numerator of the ratio is used to quantify the comparable rate of change in the other (depend) variable (i.e., is an independent variable).

Volume of the water filled in one minute = 3 cubic meters

radius is 7 m and height is h meters(say)

Hence volume = πr²h = 3

at r= 7,

π × 49 × h = 3

or, h = 3 / 49π

or, h = 0.0194 meters.

Hence the height of the water is rising at the rate of  0.0194 meters per minute.

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The values of r and s is -1 and -4 respectively.

Given that:-

coordinates of j are (-8,-5)

coordinates of l are (6,-11)

coordinates of k are (r-4,2s)

Also, k is the mid-point of jl.

We have to find the values of r and s.

We know that, for  (x,y) and (z,w), the mid-point is ((x+z)/2, (y+w)/2).

Here,

(x,y) = (-8.-5)

(z,w) = (6,-11)

(r-4,2s) = ((x+z)/2,(y+w)/2)

Hence,

(r-4,2s) = ((-8+6)/2,(-5-11)/2)

(r-4,2s) = (-1,-8)

Comparing the coordinates, we get:-

r - 4 = -1

r = -1+4 =3

2s = -8

s =-8/2 = -4

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Answer:

10

Step-by-step explanation:

substitute -3 in for x

f(-3)=(-3)²+1=

9+1=10

(You can ignore the g(x) part - it has nothing to do with this question.)

The process of planning and controlling how much time to spend on specific activities.

Time management is the process of planning and controlling how much time to spend on specific activities in order to use your time productively and efficiently.

It involves setting goals, prioritizing tasks, creating schedules and to-do lists, and monitoring progress to ensure that time is used effectively.

Effective time management can help individuals to complete tasks and achieve their goals in a timely manner, reduce stress, and increase productivity.

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R2 = SSxy / SSyyWhere SSxy is the sum of squares of regression and SSyy is the total sum of squares of y. Hence, using the given data:R2 = SSxy / SSyy= 5268 / 13,483= 0.391 or 39.1% Thus, approximately 39.1% of the variability in the volume of pine trees can be accounted for by size (circumference).

The regression line for predicting y from x:In linear regression, the regression equation that can be used to predict y for any given x value is given by: y = a + bx Where, a is the y-intercept and b is the slope of the regression line. The slope of the regression line is given by: b = SSxy / SSxx Where, SSxy is the sum of squares of regression and SSxx is the total sum of squares of x. Hence, using the given data: b = SSxy / SSxx= 5268 / ((1384^2) - (37(25.7)^2))= 0.372The y-intercept

a = y¯ - bx¯ Where x¯ and y¯ are the mean of x and y respectively. Hence, using the given data: x¯ = Sigma x / n= 1384 / 37= 37.51and y¯ = Sigma y / n= 1346 / 37= 36.38a = y¯ - bx¯= 36.38 - (0.372 × 37.51)= 22.51Therefore, the regression line for predicting y from x is: y = 22.51 + 0.372x (in cubic feet)

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Answer: $23.92

Step-by-step explanation:

First, we know that 6 bagels is $2.99.

48/6=8

This means that 6 is a multiple of 48, which makes it easier to solve.

$2.99 x 8 = 23.92

= $23.92

The division yields 1/14 for the complex fraction.

Division is one of the four basic operations of arithmetic, along with addition, subtraction, and multiplication. It is an inverse operation to multiplication, meaning that dividing by a number is the same as multiplying by its reciprocal. Division can be thought of as the process of finding how many times a number (the divisor) can fit into another number (the dividend). The result of the division is called the quotient. In some cases, the division may result in a fractional number, representing a partial division. In this case, the result is a rational number, which is a type of real number. Division can also be represented using long division, a method used to divide large numbers or polynomials. It involves dividing the dividend by the divisor one digit at a time, until the division is complete.

Here,

=22/44/7

=22/44*1/7

=1/14

The answer for the complex fraction is 1/14 by the division.

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The Proof for p₁ − 2p₃ − · · · − (n − 3)pₙ₋₁ = 2 is shown below .

In the question ,

it is given that ,

the the number of vertices of Tree T is \(p_{i}\) ,

we have to prove that p₁ − p₃ − 2p₄ − · · · − (n − 3)pₙ₋₁ = 2 ,

First note that \(p_{i}\) = 0 for i ≥ n (a vertex can have degree at most n − 1, which happens for the

star K₁ , ₙ₋₁).

Using the data that tree T has n vertices and (n − 1) edges, we have

p₁ + p₂ + p₃ + · · · + pₙ₋₁ = n               ....equation(1)

and

p₁ + 2p₂ + 3p₃ + · · · + (n − 1)pₙ₋₁ = 2(n − 1)      ......equation(2)

Subtracting the equation(2) from twice the equation(1) , we obtain

p₁ − 2p₃ − · · · − (n − 3)pₙ₋₁ = 2.

(When n = 2 we have p₁ = 2.)

Therefore , it is proved that p₁ − 2p₃ − · · · − (n − 3)pₙ₋₁ = 2    .

The given question is incomplete , the complete question is

Let T be a tree with n vertices, n ≥ 2. For a positive integer i, let pi be the number of vertices of T of degree i .  Prove that

p₁ − 2p₃ − · · · − (n − 3)pₙ₋₁ = 2.

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To find a positive number such that the sum of and is as small as possible, we need to use optimization. This problem requires optimization over a closed interval. The given problem is as follows, Let x be a positive number. Find a positive number such that the sum of and is as small as possible.

To find a positive number such that the sum of and is as small as possible, we need to use optimization. This problem requires optimization over a closed interval. The given problem is as follows, Let x be a positive number. Find a positive number such that the sum of and is as small as possible. So, we need to minimize the sum of and . Now, let's use calculus to find the minimum value of the sum.To find the minimum value, we have to find the derivative of the sum of and , i.e. f(x) with respect to x, which is given by f '(x) as shown below:

f '(x) = 1/x^2 - 1/(1-x)^2

We can see that this function is defined on the closed interval [0, 1]. The reason why we are using the closed interval is that x is a positive number, and both endpoints are included to ensure that we cover all positive numbers. Therefore, the problem requires optimization over a closed interval. This means that the minimum value exists and is achieved either at one of the endpoints of the interval or at a critical point in the interior of the interval.

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Answer:

x = 12.

Step-by-step explanation:

5/2x - 7 = 3/4x + 14.

put the like terms together keeping in mind that when a number crosses the equal sign it changes its sign and it acquires the opposite sign.

5/2x - 3/4x = 14 + 7

7/4x = 21.

divide both sides by the reciprocal of 7/4, the number next to the unknown

so x = 21 ×4/7

x = 12.