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3 years ago

Guess the correlation coefficient, r.

Mathematics

1 answer:

sattari [20]3 years ago

8 0

Answer:

It would most likely be 0.9.

Step-by-step explanation:

The correlation coefficient ranges from -1 to 1 and is dependent on how strong the correlation is between the points. It cannot be 1.2 as it is above one and it cannot be 1 because all the points do not line up on the line of best fit. However, most do, so we can assume that there a strong positive linear relationship which means 0.9 would be the correct answer. The close r gets to zero means the less of a correlation there is. The line of best fit isn't negative so it cannot be -0.23 and it has a strongly positive correlation, not a weak one so it isn't 0.13.

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Carter is going to use a computer at an internet cafe. The cafe charges an initial fee to

RoseWind [281]

Answer:

the additional charge per minute because t represents the number of minutes

Step-by-step explanation:

8 0

3 years ago

Evaluate each expression for t = 0, x = 1.5, y = 6, and z = 23

My name is Ann [436]

Answer:

1. 11

2. 20

3. 34

4. 12.6

5. 18

6. 105

Step-by-step explanation:

We are told that ---> t = 0, x = 1.5, y = 6, and z = 23

1. y + 5

= 6 + 5

= 11

2. z - 2x

= 23 - 2(1.5)

= 23 - 3

= 20

3. 2z - 2y

= 2(23) - 2(6)

= 46 - 12

= 34

4. 2.6y - 2x

= 2.6(6) - 2(1.5)

= 15.6 - 3

= 12.6

5. 4(y - x)

= 4(6 - 1.5)

= 24 - 6

= 18

6. 4(2 + z) + 5

= 4(2 + 23) + 5

= 8 + 92 + 5

= 105

3 0

2 years ago

What is 1/9+3/5= what is the fraction

Montano1993 [528]

31/45

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8 0

3 years ago

Read 2 more answers

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3 years ago

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The Invisible Gorilla experiment was repeated numerous times. In one experiment, 25 students watching the video, only 9 noticed

Dahasolnce [82]

Answer:

0.64 is the proportion of students in the population who failed to notice the woman in the gorilla suit

Step-by-step explanation:

We are given the following in the question:

Total number of students, n = 25

Number of student who noticed woman in gorilla suit = 9

Number of student who failed to notice woman in gorilla suit, x = 25 - 9 = 16

We have to find the proportion of the students in the population who failed to notice the woman in the gorilla suit.

Formula:

$p = \dfrac{x}{n} = \dfrac{16}{25} =0.64$

0.64 is the proportion of students in the population who failed to notice the woman in the gorilla suit

3 0

3 years ago

Guess the correlation coefficient, r. ​

Guess the correlation coefficient, r.