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Leokris [45]
3 years ago
10

IF UR NOT ortizfortunama1 DONT ANSWER IM TRYING TO HELP HERE OUT!

Advanced Placement (AP)
2 answers:
m_a_m_a [10]3 years ago
7 0

Answer:

Okay

Explanation:

Karo-lina-s [1.5K]3 years ago
3 0
Yes yes for sure no problem my boy lemme go get him
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The following table shows the number of hours some high school students in two towns spend riding the bus each week:
sergeinik [125]

Answer: Part A. The IQR for town A is 4.5 and the IQR for town B is 4.5

Part B. No, they are assymetric.

Explanation: To find the interquatile range (IQR) of each set of data, you can do as follows:

1) Put the number in each set of data in order:

A: 3 4 5 5 6 7 8 9 9 20

B: 3 3 5 5 6 8 8 9 9

2) Find the median of each town data:

For A, the median is the number 6. Coincidently, the same can be said for town B: its median is 6.

3) Find Q1, which is the median (or the middle term) of the left side of the median:

A: 3 4 5 5 (set of numbers to calculate)

B: 3 3 5 5

Now, as both set of number are even, to find the median, we have to calculate the mean of the two central numbers:

For A: Q1 = \frac{4+5}{2} = 4.5

For B: Q1 = \frac{3+5}{2} = 4

4) Find Q3, which is the median of the right side of the first median:

A: 7 9 9 20 (set of numbers to calculate)

B: 8 8 9 9

As before, the median will be the mean:

For A: Q3 = \frac{9+9}{2} = 9

For B: Q3 = \frac{8+9}{2} = 8.5

5) The IQR is the result of a subtraction:

IQR = Q3 - Q1

For A: IQR = 4.5

For B: IQR = 4.5

For the two sets of data the IQR is the same and equals 4.5.

Part B: Box plot is a type of graphic, similar to histogram. To plot it, you need 5 points but for this question, it will be analised just the symmetric aspect. As the graphic is a retangule, to be symmetric, the median or mean has to be in the center of the retangule. In the case of the towns, the box plots are assymetric because the median of each town is closer to the Q1 of each town. In other words, the retangule is not "divided" exactly in half.

4 0
3 years ago
What is your experience with ac/dc motors
ArbitrLikvidat [17]
DC motors are usually seen in applications where the motor speed needs to be externally controlled. AC motors work best in applications where power performance is sought for extended periods of time. All DC motors are single phase, but AC motors can be single phase or three phase.

AC and DC motors use the same principle of using an armature winding and magnetic field except with DC motors, the armature rotates while the magnetic field doesn’t rotate. In AC motors the armature does not rotate and the magnetic field continuously rotates.

In some applications today, DC electric motors are replaced by combining an AC electric motor with an electronic speed controller, known as variable frequency drives. DC electric motors are replaced with an AC electric motor and an electronic speed controller because it is a more economical and less expensive solution.

DC electric motors have many moving parts that are expensive to replace, and DC electric motor repair is usually more expensive than using a new AC electric motor with an electronic controller.

In our experience, combining an AC motor and drive proves to be the most cost effective solution for mostapplications. When servicing our customers in the field, we often recommend looking at the SMVector Series Variable Frequency Drive in combination with a three phase AC motor.








4 0
3 years ago
Newton's first law of motion states that an object at rest will stay at rest unless a force acts on it. It also states that an
diamong [38]
Law of inertia i believe sorry if im wrong:)
8 0
2 years ago
If enough experimental data supports a hypothesis, then it
matrenka [14]

Answer: The hypothesis would become a theory.

6 0
2 years ago
Which BEST explains why Africa and East Asia are ideal locations for companies to find offshore labor?
madreJ [45]
<h3>Answer:</h3>

II and IV

<h3>Explanation:</h3>

Why the II can't explain that:

There aren't educated laborers, cause the multinational companies uses the first labourers they found, so the average of them is not always qualified, and the most of them is poor and have not get an instruction.

Why the III can't explain that: In some parts of Africa and Asia, where labourers mine,work or do other things for multinational companies, the industries are not developed at all, and in case the companies their self had to develop ones in those territories

4 0
3 years ago
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