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erma4kov [3.2K]
3 years ago
9

Which of the following graphs shows a negative linear relationship with a correlation coefficient

Mathematics
1 answer:
Aloiza [94]3 years ago
8 0

Answer : Graph D

Question says negative linear relationship. It means the slope is negative.

Option A and C have positive slope because the dots on graph goes up.

So we ignore A and C graph

B and D graphs have negative slope.

Given Correlation coefficient r is close to -0.5

In Graph B the dots are close to one another . It means the correlation coefficient r is close to - 1

Graph D shows a negative linear relationship with a correlation coefficient r close to =-0.5

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The graph below shows a proportional relationship between yyy and xxx.
Elena-2011 [213]

Answer:

k = 40

Step-by-step explanation:

Given

The attached graph

Required

Calculate the constant of proportionality.

Represent the required constant with k.

Such that:

k = \dfrac{y}{x}

Pick any two corresponding values of x and y

(x,y) = (1,40)

This means that:

x = 1\ and\ y = 40

k = \dfrac{y}{x} becomes

k = \frac{40}{1}

k = 40

8 0
3 years ago
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I need help asap !!!!! 40 POINTS
stira [4]

Answer:

15

Step-by-step explanation:

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4 0
3 years ago
The midpoint of AB is M (-3,-3) if the coordinates of A are (-8,-2)what are the coordinates of B
bearhunter [10]

The coordinates of B would be (2, -4)

In order to find this, we need to know that the value of M's points will always be the average of A and B's points. This is because it is the midpoint. Therefore we can use the following formula.

Value of x

(A + B)/2 = M

(-8 + B)/2 = -3

-8 + B = -6

B = 2

Then we can do the same for the y values

Value of y

(A + B)/2 = M

(-2 + B)/2 = -3

-2 + B = -6

B = 4

7 0
3 years ago
Help plz ASAP!!!!!!!!
Naddik [55]

Answer:

D

Step-by-step explanation:

The volume (V) of the prism is calculated as

V = lbh ( l is length, b breadth and h is height )

Here l = 7, b = 2 and h = 4 , thus

V = 7 × 2 × 4 = 56 in² → D

3 0
4 years ago
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Plz help me with this question plz
Serjik [45]

Answer:

Quarters: 2 = 50 cents. 50cents

Dimes: 2 = 20 cents. 70cents

Nickels: 8 = 40 cents. $1.10

<h3>Hope this Helps!</h3>

:)

4 0
3 years ago
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