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Luda [366]
3 years ago
7

Which statement best describes the association between variable X and variable Y? Question 1 options: perfect negative associati

on perfect positive association moderate negative association moderate positive association

Mathematics
2 answers:
polet [3.4K]3 years ago
5 0
The statement which best describes the association between the variables X and Y is the <em>moderate positive association</em>. It is observable that the values of X and Y are increasing, however, not in a perfect manner as there are some minor deviations. But nonetheless, the direction is clear and the values are close to each other so they have a moderate positive association.
sineoko [7]3 years ago
4 0

Answer:

Perfect positive association

Step-by-step explanation: It right

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Smoothing a time series of observations A. is a form of statistical cheating. B. allows statisticians to use less data than woul
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Answer:

D. is used to reveal an underlying pattern in the data.

Step-by-step explanation:

Smoothing a time series is achieved when a computer uses some pre-programmed calculation methods to remove noise from large volumes of data. Smoothing helps a user detect patterns in a set of data, thus making it possible to make future predictions. For example, smoothing can be used in the prediction of the rise and fall of stock prices. This helps the traders to have an idea of what to expect in the cost of trading.

Although smoothing reveals the patterns in a set of data, it provides no explanation as to why it is so. It is left to the researcher to draw conclusions as to the reasons for the patterns.

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3 years ago
Plz help/ Trigonometric models and sine functions: plz show how you got and the GRAPH! Thx to anyone that can help
Shtirlitz [24]

Answer:

y=-2\sin(2x)-2 - The graph is attached below.

Step-by-step explanation:

Given : A sine function has the following key features:

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To plot the graph :

Solution :

General form of sin function is y=A sin(Bx)+C

Where A is the amplitude

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Substitute the given key features  

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The sin function is  y=2\sin(2x)-2

The function is a reflection of its parent function over the x-axis.

i.e, The coordinate became (x,y)→(x,-y)

The sin function is y=-2\sin(2x)-2

Now, We plot the graph of the sin function.

The graph is attached below.  

First point is midline i.e, (0,-2)

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Answer:

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Step-by-step explanation:

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