Which type of graph shows data points plotted and connected by line segments?

A. a circle graph
B. a histogram
C. a dot plot
D. a line graph

The correct answer will be option C Randomization of students in morning and afternoon classes.

Psychology is the scientific study of the mind and behavior, according to the American Psychological Association.

The only way to minimize this effect would be through randomization of students in morning and afternoon classes.

Doing so apply the factor of skill from an individual student to either time of day class greatly lessens the overall effect that it has on the results.

This therefore, minimizes the effect it has on the experiment itself, since the same students that have been studying in a certain time of day would be randomized and not have the same environment that they are used to.

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Answer:

Step-by-step explanation:

Direct control by requiring every class to take the same test

Answer:

A = 8.2462112512353

I hope it's helps you

The solutions to the equation 2sin(θ) = 1 on the interval [0, 2π) are:

θ = π/6, 13π/6

To find all solutions to the equation 2sin(θ) = 1 on the interval [0, 2π), we can solve for θ by isolating the sin(θ) term and then using inverse trigonometric functions.

Given: 2sin(θ) = 1

Dividing both sides by 2:

sin(θ) = 1/2

Now, we can use the inverse sine function to find the solutions:

θ = sin^(-1)(1/2)

The inverse sine of 1/2 is π/6. However, we need to consider all solutions on the interval [0, 2π).

Since the sine function has a period of 2π, we can find the other solutions by adding integer multiples of 2π to the principal solution.

The principal solution is θ = π/6. Adding 2π to it, we get:

θ = π/6 + 2π = π/6, 13π/6

So, the solutions to the equation 2sin(θ) = 1 on the interval [0, 2π) are:

θ = π/6, 13π/6

These are the two solutions that satisfy the given equation on the specified interval.

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When it comes to Bootstrap confidence interval and randomization hypothesis both have a common ground, both of them are regarded as resampling methods that are efficient in measuring accuracy using intervals, prediction error, confidence, variance, bias etc. It also focuses on the crucial point of evaluating the variability of statistics.

The quick set of methods used to construct Bootstrap confidence interval and randomization distribution are similar considering the way they are used.

Furthermore, the thought of using Bootstrap confidence interval or randomization hypothesis depends on the research question. Hence,  choosing from both depends on the type of approach the researcher needs to elucidate the research.

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Answer:

m(arc)RST = 154 deg

Step-by-step explanation:

Opposite angles of an inscribed quadrilateral are supplementary.

x + 77 + x + 103 = 180

2x + 180 = 180

2x = 0

x = 0

m<RST = x + 77 = 0 + 77 = 77

The measure of an inscribed angle is half the measure of its subtended arc.

m<RST = (1/2)m(arc)RST

77 = (1/2)m(arc)RST

154 = m(arc)RST

m(arc)RST = 154 deg

Welming's spending is $1164.8 and his savings is $291.2

The given parameters are:

Weekly pocket = $28

Save = 20%

There are 52 weeks in a year.

So, the yearly pocket is:

Yearly pocket = $28 * 52

Evaluate

Yearly pocket = $1456

He saves 20%.

So, we have:

Savings = 20% * $1456

Evaluate

Savings = $291.2

His spending is then calculated as:

Spending = $1456 - $291.2

Evaluate

Spending = $1164.8

Hence, Welming's spending is $1164.8 and his savings is $291.2

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Answer:

1/7 km long

Step-by-step explanation:

The area of a square is any given one of the sides, squared. We can take this information and apply it to this problem. If the area is 1/49 km squared, we can take the square root of this to find the length of each side.

The square root of 1 is 1, and the square root of 49 is 7, so the answer is 1/7 km for each side.

If you have any further questions, let me know!

Answer:

\(\frac{1}{7}\)

Step-by-step explanation:

Given the length of equators for 4 planets

What are possible estimates for the lengths of the equators of Jupiter and Earth?

As shown:

The length of the equator of the earth = 40,030 km

The length of the equator of Jupiter = 439,264 km

We will divide the length of the equator of Jupiter by Earth:

By rounding to the nearest whole number

So, the answer will be:

So, the Jupiter equator is 11 times the equator of Earth

First the endpoints of this line segment are : (a, a) and (a, -a)

For a+0 the new endpoints will be :(a, a) and (a, -a) because only zero was added to each coordinate

The transformation that will retain these points will be;

Rx =0 (S) where you only add zero to the x,coordinate

Given statement solution is :- The new cost of a table is:

New cost of a table = T + (T * 20%)

New cost of a table = T + (T * 0.2)

New cost of a table = 1.2T

The new cost of a chair is:

A new chair would cost $900 plus ($900 * 20%)

A chair would cost $900 new plus ($900 * 0.2)

A new chair would cost $900 plus $180.

New cost of a chair = $1,080

Let's assume that a chair originally cost C and a table originally cost T.

The price of two chairs, based on the information provided, is $1,800. So we can set up the following equation:

2C = $1,800

When we multiply the two sides of the equation by 2, we get:

C = $1,800 / 2

C = $900

This indicates that a chair once cost $900.

After a month, the price of every chair and every table has now gone up by 20%. This means the new cost of a chair is 120% of the original cost, and the new cost of a table is also 120% of the original cost.

The new cost of a chair is:

A new chair would cost $900 plus ($900 * 20%)

A chair would cost $900 new plus ($900 * 0.2)

A new chair would cost $900 plus $180.

New cost of a chair = $1,080

Similarly, the new cost of a table is:

New cost of a table = T + (T * 20%)

New cost of a table = T + (T * 0.2)

New cost of a table = 1.2T

According to the given information, the office bought 6 chairs and 2 tables at $4,800. Using the updated costs, we can construct the following equation:

(6 * $1,080) + (2 * 1.2T) = $4,800

Simplifying the equation, we have:

6,480 + 2.4T = 4,800

Subtracting 2.4T from both sides, we get:

6,480 = 4,800 - 2.4T

Subtracting 4,800 from both sides, we have:

1,680 = -2.4T

Dividing both sides by -2.4, we find:

T = 1,680 / -2.4

T ≈ -$700

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Answer:

I’m gonna explain this best I can

Step-by-step explanation:

okay, since I dont have graphing paper or your graph, I am going to put the points that your dots would go in, and you can put them and connect the line :)

first point: (0, -1)

second point: (7, 4)

third point: (14, 9)

then connect the line

Answer:

<1 = 33

<2 = 90

<3 = 57

Step-by-step explanation:

<3 = 57 because of alternate interior angles

<2 + <3 + 33 = 180

<2 + 57 + 33 = 180

<2 + 90 = 180

<2 = 90

<1 + <2 + 57 = 180

<1 + 90 + 57 = 180

<1 + 147 = 180

<1 = 33

Answer:

his mistake is that he didn't need to remove one even number on the spinner so we just need to take 2/5x1/5equals2/25

Answer:

Total possible outcomes = 6×6 = 36

a) P(5) = 1/9

b) P(11) = 1/18

c) P(two and six) = 1/36

Step-by-step explanation:

A black die and a white die are thrown at the same  time.

Each die has six sides so total possible outcomes are

Total possible outcomes = 6×6 = 36

The possible outcomes are given below:

(1, 1)  (1, 2) (1, 3) (1, 4) (1, 5) (1, 6)

(2, 1) (2, 2) (2, 3) (2, 4) (2, 5) (2, 6)

(3, 1) (3, 2) (3, 3) (3, 4) (3, 5) (3, 6)

(4, 1) (4, 2) (4, 3) (4, 4) (4, 5) (4, 6)

(5, 1) (5, 2) (5, 3) (5, 4) (5, 5) (5, 6)

(6, 1) (6, 2) (6, 3) (6, 4) (6, 5) (6, 6)

a) Find the  probability of obtaining a total of 5

Number of ways to get a total of 5 = (1, 4) (2, 3) (3, 2) (4, 1)

Number of ways to get a total of 5 = 4

The probability is given by

P = Number of desired outcomes/total number of outcomes

P(5) = 4/36

P(5) = 1/9

b) Find the  probability of obtaining a total of 11

Number of ways to get a total of 11 = (5, 6) (6, 5)

Number of ways to get a total of 11 = 2

The probability is given by

P(11) = 2/36

P(11) = 1/18

c) a 'two' on the black die and a six' on the white die.

There is only one way to get a two on the black die.

Probability of obtaining a two on the black die = 1/6

There is only one way to get a six on the white die.

Probability of obtaining a six on the white die = 1/6

P(two and six) = 1/6×1/6

P(two and six) = 1/36

Answer:

Option (c)

Step-by-step explanation:

From the diagram attached,

First circle has 4 points on its circumference. By joining these points we get a quadrilateral inside the circle.

Second circle has 3 on its circumference. By joining these points we get a triangle inscribed in the circle.

In 3rd circle points on the circumference have been reduced again to 2. By joining these points we get a straight line.

Following the same pattern in the 4th circle we will get a single point on the circumference of the circle.

Therefore, Option (c) will be the answer.

The equation of the sphere that passes through the point (4, 3, -1) and has a center at (3, 8, 1) is: (x - 3)^2 + (y - 8)^2 + (z - 1)^2 = 30.

To find the equation of the sphere passing through the point (4, 3, -1) with a center at (3, 8, 1), we can use the general equation of a sphere:

(x - h)^2 + (y - k)^2 + (z - l)^2 = r^2

where (h, k, l) represents the center of the sphere and r represents the radius.

First, we need to find the radius. The distance between the center and the given point can be calculated using the distance formula:

√[(x2 - x1)^2 + (y2 - y1)^2 + (z2 - z1)^2]

Substituting the coordinates of the center (3, 8, 1) and the given point (4, 3, -1), we have:

√[(4 - 3)^2 + (3 - 8)^2 + (-1 - 1)^2]

Simplifying, we get:

√[1 + 25 + 4] = √30

Therefore, the radius of the sphere is √30.

Now we can substitute the center (3, 8, 1) and the radius √30 into the general equation:

(x - 3)^2 + (y - 8)^2 + (z - 1)^2 = 30

So, the equation of the sphere that passes through the point (4, 3, -1) and has a center at (3, 8, 1) is:

(x - 3)^2 + (y - 8)^2 + (z - 1)^2 = 30.

This equation represents all the points on the sphere's surface.

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Based on the given information, if the measurement of the median and the mean were reversed, it is most likely that: A. The data are skewed to the left.

When the mean is greater than the median, it indicates that the data distribution is skewed to the right. However, if the measurement of the median and the mean were reversed, it implies that the median (56,516 dollars) is greater than the mean (approximately 79,263 dollars). This suggests that the distribution is likely to be skewed to the left, with a longer tail on the left side of the distribution. In other words, there is an accumulation of lower-income households that pulls the median higher than the mean. Therefore, option A, "The data are skewed to the left," is the most likely scenario.

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Correct question:

The following data set provides information of Households by Total Money Income, Race, and Hispanic Origin of Householder.

Race and Hispanic orign of householder and year Number (thousands) Percent distribution Percentdistribution          Median income (dollars)  

Total Under$15,000 $15,000 to $24,999 $25,000 to $34,999 $35,000 to $49,999 $50,000 to $74,999 $75,000 to $99,999 $100,000 to $149,999 $150,000 to $199,999 $200,000 and over Estimate StandardError Estimate StandardError

ALL RACES                

2015 125,819 100 100 11.6 10.5 10 12.7 16.7 12.1 14.1 6.2 6.1 56,516 321 79,263 403

If the measurement of the median and the mean were reversed, which of the following is most likely?                       Provide 100 words with  20 words main answer separate and 80 words explanation.      

A. The data are skewed to the left.

B. The data are skewed to the right.

C. The data are symmetrical.

D. Not enough information to make a decision.

Answer:

im not sure what part A is but part B is 6

390 divided by 65 equals 6 therfore he mowed 6 lawns last week.

Hope this help some

Answer:

Just multiply the number of bottles times 1.50

Step-by-step explanation:

For an example 1.50×3 is 4.50

Answer:

y = 2x + 1

Step-by-step explanation:

i used desmos

Answer:

1

y = 0

x = 2

Step-by-step explanation:

The first thing we want to do to solve a system of equations is to solve one of them in terms of a single variable.

Lets start with x - y = 2

If we add y to both sides we get: x = 2 + y

Now to solve the system of equations we can substitute that value for x into the other equation. In any system of equations a solution for one must be a solution for the other as well.

ay - ax + 2a = 0

When we substitute our value of x into this equation and get the folowing:

ay - a(2 + y) +2a = 0

ay -2a - ay + 2a = 0

All of the terms cancel out on the left side leaving us with:

0 = 0

This means that the only way this system can be solved is if y is equal to 0.

Going back to the first equation x - y = 2

x - 0 = 2   so x = 2

This is the only solution to that system of equations, which means it forms a point instead of a line.

Answer:

Your answer is A, and I'm unsure of it but the other answer is D

Step-by-step explanation:

A: Is correct because there is a pattern, the pattern in every +1 in X there is +3 in Y

B: Is incorrect because there is no pattern, it is just a random series of numbers

C: Is incorrect because there is again no pattern, and just a random series of numbers

D: Is correct because there is a pattern, it is every +2 in the X there is +0 in the Y

Thus A, and D are your answers!

Divide price by ounces:

1.20 / 12 = 0.10

Rate per ounce = $0.10

Answer:

i don't know.

this is so hard to understand.

Answer:

6/8

Step-by-step explanation:

yep 6/8

aaaaaaaaaaaaaaaaaaa

Answer:

4

Step-by-step explanation:

5 * 1/5 + 1/5 * 15 = 4

Answer:

4

Step-by-step explanation:

5c+ cd

Let c = 1/5 and d = 15

5 * 1/5 + 1/5 * 15

Multiply first

1 + 3

Then add

4

Answer:

to compare them, you have to get the same denominator. So you change the denominator to 24 by multipling 7/12 by 2, and 5/8 by 3. Then you have 14/24 and 15/24. This means that 5/8 is greater than 7/12

Step-by-step explanation:

Hope this helps. If you want, please mark me as brainliest

Answer: Please mark me brainlest 15

24

>

14

24

or

5

8

>

7

12

Step-by-step explanation:

Find the least common denominator or LCM of the two denominators:

LCM of 8 and 12 is 24

For the 1st fraction, since 8 × 3 = 24,

5

8

=

5 × 3

8 × 3

=

15

24

Likewise, for the 2nd fraction, since 12 × 2 = 24,

7

12

=

7 × 2

12 × 2

=

14

24

Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction

Answer:

\(Area: 29 cm^{2}\)

Step-by-step explanation:

\(Aear=(8.5+6)(\frac{4}{5} )\)

\(Area=14.5 (2)\)

\(Area=29\)

----------------------

hope it helps...

have a great day!!

A shape has rotational symmetry whereby it has the same appearance when it is rotated partially, and a line of symmetry cuts an object into two matching halves

The correct values are as follows;

1. a. The figure has four lines of symmetry

b. The figure has six lines of symmetry

c. The figure has five lines of symmetry

d. the figure has two lines of symmetry

2. The error is that rotational symmetry of a octagon are 45°, 90°, 135°, 180°, 225°, 270°, 315°, and 360°

3. a. 90°, 180°, and 270°

b. 120° and 240°

Reasons:

1. a. The lines of symmetry of the figure are;

Therefore;

b. The figure is a regular hexagon and it has six lines of symmetry

c. A star has five lines of symmetry

Therefore;

d. A rhombus has two lines of symmetry

2. The error is that rotational symmetry of a octagon are 45°, 90°, 135°, 180°, 225°, 270°, 315°, 360°

3. a. The lines of symmetry are perpendicular, therefore, the figure has rotational symmetry of 90°, 180°, and 270°

b. The triangle has three lines of symmetry, therefore, the rotational symmetry are \(\dfrac{360^{\circ}}{3} = 120^{\circ}\) apart, therefore

The angles of rotational symmetry are; 120° and 240°

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Assuming everything else stays the same, an increase in the price of smartphones will decrease the quantity supplied of smartphones. Option c is the correct answer.

This is because the quantity supplied is the number of smartphones that suppliers are willing and able to sell at a given price, while supply refers to the entire range of quantities that suppliers are willing and able to sell at different prices.

When the price of smartphones increases, the cost of production and supply also increases. This leads to a decrease in the profitability of supplying smartphones at the current market price, and hence suppliers reduce the quantity supplied.

As a result, the quantity supplied of smartphones decreases, causing a leftward shift in the supply curve.

However, it is important to note that a decrease in the quantity supplied does not mean that there is a decrease in demand for smartphones. The demand for smartphones could remain the same, or even increase, leading to a shortage of smartphones in the market.

Therefore, the correct option is c.

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Answer:

It would be $12 overestimate

Step-by-step explanation:

$2.19 rounded to one significant figure would be $2.00

$2.00 multiplied by 6 would be $12

However since 19 cents is over $2, this means it's a definite overestimate

Hope this helps! :)