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marishachu [46]
3 years ago
12

A study revealed a strong, linear, negative association between a decrease in salary and amount spent on clothes. Another study

revealed a strong, linear, negative association between decrease in salary and amount spent on food. When the data were combined, the association became positive. What is this an example of?
A. simpson's paradox
B.observational study
C.experimental study
D.cause-and effect realtionship
E.error by the statistician
Mathematics
2 answers:
KIM [24]3 years ago
7 0
Simpson's Paradox. There is a Youtube video on it by minutephysics you can watch. I highly encourage it. 

Hope this helps!
Artyom0805 [142]3 years ago
3 0

Answer:

A. simpson's paradox

Step-by-step explanation:

The correct answer is Simpson's paradox.

It happens when in separate trials, a relation is found. However, when these trials are combined, the relation changes.

In this problem, we have negative association between a decrease in salary and amount spent on clothes and a negative association between decrease in salary and amount spent on food. However, when the data is combined, the association becomes positive, that is, changes.

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A 3lbs of apples cost $2.91, what will be delivered cost of 8lbs of apples
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ZA and B are supplementary angles. If mA (x - 9)° and
Verizon [17]

The measurement of  ∠B  is 168°

Given,

In the question:

Angle A and Angle B are supplementary angles.

If mA (x - 9)° and m/B= (7x + 21)°

To find the measure of ∠B

Now, According to the question;

What are supplementary angles?

Two angles are Supplementary when they add up to 180 degrees.

Now, ∠A+∠B = 180°

So,

⇒(x - 9)˚+(7x + 21)°=180°

=> 8x +12 = 180°

=> 8x = 180° - 12

=> 8x = 168

=> x = 168/8

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For the measure of ∠B :

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5 0
2 years ago
Olve each equation for the<br> 1) -27 + m = 3m + 9
bearhunter [10]

Hey!

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

Steps To Solve:

-27 + m = 3m + 9

~Subtract m to both sides

-27 + m - m = 3m + 9 - m

~Simplify

-27 = 2m + 9

~Subtract 9 to both sides

-27 - 9 = 2m + 9 - 9

~Simplify

-36 = 2m

~Divide 2 to both sides

-36/2 = 2m/2

~Simplify

-18 = m

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

Answer:

m = -18

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

Hope This Helped! Good Luck!

4 0
4 years ago
Read 2 more answers
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