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3 years ago

Which r-value represents the strongest negative correlation -0.7 -0.22 0.38 0.9

Mathematics

2 answers:

krek1111 [17]3 years ago

8 0

I think -0.7
Correct me if I'm wrong

mote1985 [20]3 years ago

6 0

Answer:

The value -0.7 represents the strongest negative correlation.

Step-by-step explanation:

The correlation coefficient r determines how strong the correlation between two statistical variables is.

It can indicate a direct or inverse relationship between variables.

Its value ranges between -1.0 and 1.0, the closer its value is to these two values, the greater the correlation between the variables.

Therefore, sorting the data from the smallest to the largest you have:

-0.7 -0.22 0.38 0.9

As you can see the largest negative value is -0.7, therefore the value -0.7 represents the strongest negative correlation.

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In a company, 80% of the workers are women. If 480 men work for the company, how many workers are there in all? Use pencil

nekit [7.7K]

Answer:

The total workers are 2400.

Step-by-step explanation:

Given:

In company 80% of the workers are women.

480 workers are men.

Now, to find the total workers in all.

In first way:

If women are 80%, then men would be 100-80 = 20%.

Let the total workers be $x$ .

According to question:

$20\%\ of \ x=480$

⇒ $\frac{20}{100} \times x=480$

⇒ $0.20\times x=480$

⇒ $0.20x=480$

Dividing both sides by 0.20 we get:

⇒ $x=2400$ .

Total workers = 2400.

Now, in second way.

Again, let the total workers be $x$ .

According to question:

$x-80\%\ of\ x=480$

⇒ $x-\frac{80}{100}\times x=480$

On solving:

⇒ $x-0.80x=480$

⇒ $0.20x=480$

Dividing both sides by 0.20 we get:

⇒ $x=2400$ .

Total workers = 2400.

Therefore, the total workers are 2400.

7 0

3 years ago

analyze the diagram below and complete the instructions that follow . find the value of z. A.11 B.32 C.50 D.68

masha68 [24]

Answer:

Step-by-step explanation:

x = √30² - 18² = √576 = 24

tan A = 18/24 = 3/4

∠A = ∠B

tan B = tan A = 24 / y = 3 / 4

y = (24 x 4) / 3 = 32

Z = y + 18 = 32 + 18 = 50

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3 years ago

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mote1985 [20]

Answer:

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Step-by-step explanation:

5/8 ÷ 2/1
5/8 × 1/2
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Answer:

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Step-by-step explanation:

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