Ask question

Ask question

All categories

3 years ago

9

What conclusion can be made when r, the correlation coefficient between two variables, is 0?

1 answer:

IgorLugansk [536]3 years ago

6 0

The correlation coefficient between two variables, r, is always going to be between -1 and 1.

- If the correlation coefficient is 0, means that there is no strong correlation relationship in one direction or the other direction.
- If the correlation coefficient is -1, means that these two variables move in opposite directions.
- If the correlation coefficient is 1, means that these two variables move in the same direction.

You might be interested in

If you guys just want points just answer this question. What is 1+1??

Kruka [31]

The answer to this is 2

3 0

3 years ago

Read 2 more answers

The mean daily rainfall for a week was 5.5mm.for the first six days the mean rainfall was 1mm.How much rainfall on the seventh d

spayn [35]

Answer:

There was 32.5mm of rainfall on the seventh day.

Step-by-step explanation:

Mean of a data-set:

The mean of a data-set is the sum of all values of a data-set divided by the number of values in the data-set.

The mean daily rainfall for a week was 5.5mm.for the first six days the mean rainfall was 1mm.

This means that during the week(7 days), the total amount of rain was of:

$6*1 + x = 6 + x$

How much rainfall on the seventh day ?

This is x. We have that:

$\frac{6 + x}{7} = 5.5$

$6 + x = 7*5.5$

$6 + x = 38.5$

$x = 38.5 - 6 = 32.5$

There was 32.5mm of rainfall on the seventh day.

7 0

3 years ago

Is the power of ( -7) to the fourth power is negative ?

Sloan [31]

(-7)^4=2401
answer= no the result is positive

5 0

3 years ago

The product of 4x and 0 is

Alborosie

Answer:

0

Step-by-step explanation:

any thing that is multiplied by 0 will be 0

8 0

3 years ago

What is the equation of the line that passes through (-2, 2) and (1,-4)?

Reil [10]

Answer:

$Equation \ of \ the \ line => (y -y_{2}) =m(x -x_{2} )$

$slope, m = \frac{y_{2} -y_{1} }{x_{2} -x_{1} } =\frac{-4-2}{1--2} = \frac{-6}{3} = -2$

Equation the line passing through (-2, 2) and ( 1, -4)

$(y -- 4) = -2(x -1)\\\\(y +4) = -2x + 2\\\\y = -2x +2 -4 \\\\y = -2x -2$

option D

7 0

3 years ago