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SVEN [57.7K]
3 years ago
12

Please Help me Due today

Mathematics
1 answer:
Helen [10]3 years ago
3 0

Answer:

Strong positive correlation

Step-by-step explanation:

The given scatterplot, where the data points are sloping upward:

The stronger the association of the two variables, the closer the Pearson correlation coefficient, <em>r</em>, will be to either +1 or -1 depending on whether the relationship is <em>positive</em> or <em>negative</em>, respectively.  

If the value of the correlation coefficient is 0 < <em>r</em> < 1 then there is a positive linear trend and the data points are scattered around the line of best fit; the smaller the absolute value of <em>r, </em>the less well the data can be visualized by a single linear relationship. The closer the value of r to 0 the greater the variation around the line of best fit.

In the attached screenshot, where I've drawn a line across the graph: it shows that the data points are clustered around the line. It is easier to estimate that the value of <em>r </em>is closer to 1, which implies a strong positive relationship between two variables. My estimate is that <em>r</em> = 0.8.

Therefore, the correct answer is Strong Positive association.

Please mark my answers as the Brainliest, if you find this helpful :)

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8 and 4/5 falls into what category
Yanka [14]
If you meant "8 4/5," then that's "a mixed number."
Otherwise, both 8 and 4/5 are real numbers, and both are rationale.
Please be clearer about what you need to learn here.

5 0
4 years ago
Which function is the best inverse of f(x)=x2-9
melomori [17]

Answer:

The inverse is sqrt(x+9)

Step-by-step explanation:

f(x)=x^2-9

To find the inverse of the function, we interchange x and y and solve for y

y = x^2 -9

x = y^2 -9

Add 9 to each side

x+9 = y^2 -9+9

x+9 = y^2

Take the square root of each side

sqrt(x+9) = sqrt(y^2)

sqrt(x+9) = y

f^-1 (x) = sqrt(x+9)

7 0
3 years ago
Which of the following represents "four times the square of a number is thirty-six"?
Lapatulllka [165]

Answer:

Option (b) is correct.

4x^2=36

Step-by-step explanation:

 Given  expression "four times the square of a number is thirty-six"

We have to write it mathematically and choose the correct options out of given options.

Consider the given expression  "four times the square of a number is thirty-six"

Then

let the number be x ,

Then four times the square of a number written mathematically as 4x^2

And given "four times the square of a number is thirty-six" written mathematically as 4x^2=36

Therefore, "four times the square of a number is thirty-six" written mathematically as 4x^2=36

Option (b) is correct.

6 0
3 years ago
Read 2 more answers
Can someone help me out on this please??
Alona [7]

Answer:

a is growth and b is decay

Step-by-step explanation:

a is growth because it is adding cause the percentage is <u>1</u><u> </u><u>or </u><u>higher</u><u> </u>so that would make b decay because it is subtracting because the percentage is <u>lower </u><u>than </u><u>1</u> so it would be like 0.12

4 0
3 years ago
Val buys a computer for $920. If this is 115% of what the store paid for the same computer, how much did the store earn on the s
noname [10]

Hi!

We will solve this using rations, like this:

$920 equals to 115% = 1,15

$x equals to 100% = 1

_______________________

x = (920*1)/1,15

x = 920/1,15

x = 800

Store earned 15%, or in this case 920 - 800 = $120.

Hope this helps!

4 0
4 years ago
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