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blagie [28]
3 years ago
11

Which is the best estimate of the correlation coefficient for the scatter plot?

Mathematics
2 answers:
leva [86]3 years ago
7 0

The best estimate for this correlation would be B) 0.9.

We can see that the number is constantly going up, which would throw out the D answer.

We can also see that for every time the x goes up 1, the y goes up a little less than one. We can see that in the ordered pairs that exist on the graph such as (3, 2), (8, 6) and (2.1, 1.9).

Since the y values are just lower than the x, the correlation would be just under one. Therefore, 0.9 is an accurate estimation.

stiv31 [10]3 years ago
7 0
<h2>Answer:</h2>

The best estimate of the correlation coefficient for the scatter plot is:

                B. 0.9

<h2>Step-by-step explanation:</h2>

We know that the correlation coefficient(i.e. r-value) takes the value from -1 to 1.

If the r-value =1

then the correlation between the variables is strong positive or we may say a perfect positive relation.

i.e. all of the data points will lie along a straight line with positive slope.

and if the r-value= -1

then the correlation between the two-variables is perfect negative  i.e. all of the data points will lie along a straight line with negative slope.

Also, if r value is close to 1 then the data points lie along a straight line with positive slope but not all, i.e. there is a strong positive relation.

Also, if r value is close to -1 then the data points lie along a straight line with negative slope but not all i.e. there is a strong negative relation.

Hence, here by looking at the data points we say that with the increase in one variable the other also increases.

Hence, the relation is positive.

Also, if we make a trend line then we see that most of the data points lie on that line or close to that line but not all.

Hence, the association is:

              Strong Positive association.

This means that the r value is close to 1 but not equal to 1.

                Hence, the answer is:

                       B. 0.9

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Translate the description as an algebraic expression:
charle [14.2K]

Answer:

13/20p

Step-by-step explanation:

Here, we want to write an expression from the given statement

We start from the product of 20 and p

Mathematically. that is 20 * p = 20p

Now to find the ratio, we simply place 12 over the product

We have this as;

13/20p

5 0
2 years ago
on saturday you bowl at mar vista bowl where renting shoes costs $2 and each game bowled is $3.50.on sunday you bowl at pinz whe
Vlad1618 [11]

Answer:

Let x= number of games bowled.

Amount spent at Vista Bowl=2+3.5x

Amount spent at Pinz Bowl=5+3.25x

Setting these two equations equal to each other and solving for x will give you the number of games you can bowl to make the cost the same:

                             2+3.5x=5+3.25x             setting equations equal

                             3.5x-3.25x=5-2               combining like terms

                             0.25x=3                          simplify

                             (1/4)x=3                         changing decimal into a fraction

                             x=(3)(4)                         multiply both sides by 4 to isolate the x

                             x=12                              answer

Step-by-step explanation:

3 0
3 years ago
Help me please help me thank you
kow [346]

Answer: 110, 35, 70, G, J, F, E, B, A, H, C, D, I

Step-by-step explanation:

8. For number 8, you will be using the exterior angle theorem. The exterior angle theorem states that the exterior angle equals the two angles inside the given triangle. Since we have 50 and 60, you will add 50 + 60 to get 110.

9. In this problem, you shall use the vertical angle theorem. The vertical angle theorem is simply that any angles vertical from one another are congruent. So a will be also 35 degrees.

10. This is an image depicting two lines cut by a transversal, creating multiple congruent angles. With this, you will be using the alternate interior angle theorem. Alternate interior angles are angles on different sides of the transversal but inside both of the lines that were cut into, as shown above. So,  b will also equal 70 degrees.

Part B:

1. G

2. J

3. F

4. E

5. B

6. A

7. H

8. C

9. D

10. I

8 0
2 years ago
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Each side of a square is increasing at a rate of 6 cm/s. At what rate is the area of the square increasing when the area of the
siniylev [52]

<u>Solution:</u> 48cm/s^2

<u>Working:</u>

A = s^2

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<em>Feel free to mark this as brainliest :D</em>

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2 years ago
Does this table represent a function? 
Fed [463]
It d because one x-value correspond two different y-values
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