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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:

Inga [223]3 years ago

5 0

Answer:

–0.7

Step-by-step explanation:

The correlation is the link between two variables. It only tells that there is a link between the two but the cause or other information cannot be obtained from correlation.

The correlation can be negative or positive. The value lies between zero and one.

Value closer to one or -1 means strong correlation and value close to zero means weaker correlation.

From the given options only two values show negative correlation and -0.7 is closest to -1 so it is the strongest ..

Evgen [1.6K]3 years ago

4 0

Answer:

-0.7

Step-by-step explanation:

just took it

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Help! 20 points, I can’t figure it out and my daughter is in 7th grade. The hard middle school years aha

Shtirlitz [24]

Answer:

(0, 0), (1, 4), (2, 8); 4

(0,0), (3, 1), (6, 2); 1/3

(0,0), (4, 2), (8, 4); 0.5

Step-by-step explanation:

Part a:

Choose any 3 values for x. Plug them into the equation and find the corresponding y values.

y = 4x

Let x = 0:

y = 4x = 4(0) = 0

First point: (0, 0)

Let x = 1:

y = 4x = 4(1) = 4

Second point: (1, 4)

Let x = 2:

y = 4x = 4(2) = 8

Third point: (2, 8)

Answer to part a:

(0, 0), (1, 4), (2, 8)

The constant of proportionality is k in the equation of a proportional relationship, y = kx

y = 4x

Constant of proportionality: 4

Part b:

y = (1/3)x

Let x = 0, 3, 6 (one at a time)

For x = 0, y = (1/3)(0) = 0

For x = 3, y = (1/3)(3) = 1

For x = 6, y = (1/3)(6) = 2

Answer to part b:

(0,0), (3, 1), (6, 2)

Constant of proportionality: 1/3

Part c:

y = 0.5x

Let x = 0, 4, 8 (one at a time)

For x = 0, y = (0.5)(0) = 0

For x = 4, y = (0.5)(4) = 2

For x = 8, y = (0.5)(8) = 4

Answer to part b:

(0,0), (4, 2), (8, 4)

Constant of proportionality: 0.5

6 0

3 years ago

Find the area and perimeter of each composite figure. 1. 18 m 13 m 10 m 30 m

sergejj [24]

Sorry if I am wrong I am not 100% sure I think it’s 13

6 0

4 years ago

It cost Liam $6.10 to send 61 text messages. How much would it cost to send 185 text messages?

vredina [299]

Answer:

$18.50

Step-by-step explanation:

In the example before 61 messages = $6.10 or rounding to the tenths place 6.1. If you do the same with 185, you get 18.5 or 18.50

6 0

4 years ago

Read 2 more answers

a triangle has an area of 54 m2 and a height of 9m how long is the base of the triangle entered your answer in the box

Delvig [45]

Answer:
base of the triangle = 12 m

Explanation:
Area of the triangle = 1/2 * base * height
We are given that:
area = 54 m^2
height = 9 m

Substitute in the equation to get the base as follows:
Area of the triangle = 1/2 * base * height
54 = 1/2 * base * 9
108 = 9*base
base = 12 m

Hope this helps :)

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3 years ago

Read 2 more answers

Quinn and Alexander are painting their bedroom. Quinn has painted 2/5 of his room. Alexander has painted 2/3 of his room. Who ha

AleksAgata [21]

Answer:

Alexander

Step-by-step explanation:

Alexander has painted 2/3 of his room. Quinn has painted 2/5 of his. To find who has painted more, convert both fractions to have the same denominators. An easy way to do this is to multiply the numerator and denominator of one fraction by the denominator of the other, then do the same for the other fraction. So, $\frac{2}{3}$ · 5 = $\frac{10}{15}$ and $\frac{2}{5}$ · 3 = $\frac{6}{15}$ .

$\frac{10}{15}$ > $\frac{6}{15}$ . So, Alexander has painted more of his room than Quinn has.

4 0

3 years ago