1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
rodikova [14]
3 years ago
8

Which of these r-value r represents the strongest correlation

Mathematics
2 answers:
Zielflug [23.3K]3 years ago
8 0

Answer:

<h2> B. 0.65 </h2>

Step-by-step explanation:

The options to this question are

A. 0.55

B. 0.65

C. 0.35

D. 0.45

The correlation coefficient is a statistical measure of the realtionship between variables in a study, this measure is about how strong are realted those variables. The correlation could be strong or weak, could be negative or positive.

The range or interval where the correlation coefficent falls is from -1 to 1. If the coefficient is outside this interval, there's an error in the data set.

Now, if the coefficient is zero, it means there's no correlation between variables. But, if the coefficient is near to 1, it means the correlation is positive and strong.

Therefore, in this case, the right answer is B. 0.65, because it's the closest value to 1.

STatiana [176]3 years ago
5 0

A. 0.55

B. 0.65

C. 0.35

D. 0.45

0.65  represents the strongest correlation.

Answer: Option B.

<u>Explanation:</u>

In statistics, correlation or dependence is any measurable relationship, regardless of whether causal or not, between two arbitrary factors or bivariate information. In the broadest sense connection is any measurable affiliation, however it normally alludes to how much a couple of factors are straightly related.

For two factors, a statistical correlation is estimated by the utilization of a Correlation Coefficient, spoke to by the image (r), which is a solitary number that depicts the level of connection between two factors.

You might be interested in
a bag contains 10 white gold balls and 6 striped golf balls. a golfer wants to add 112 golf balls to the bag. he wants the ratio
wolverine [178]

Answer:70 white golf balls and 42 striped golf balls

Step-by-step explanation:

First we find the ratio of white to striped balls

White golf balls = 10

Striped golf balls = 6

Ratio = 10/6 = 5/3

We are told a golfer wants to add extra 112 balls to the already 16 balls

And the ratio after adding 112 balls must stay the same

First we label the extra golf balls to be added x and y

x = white golf balls

y = striped golf balls

So since we know the 112 balls added is a combination of the extra white golf balls and striped golf balls, we create an equation for that, labelling it (1)

x + y = 112 (1)

And we are told that after putting these extra balls the ratio must remain the same, which is 5/3

which will be (10 white balls + x) divided by (6 striped ball + y) will be equals to 5/3

So we create another equation for this, labelling it (2)

(10+x)/(6+y) = 5/3 (2)

So we have two simultaneous equations

We pick (1)

x + y = 112

We either make x or y the subject of formula, I choose to make x the subject of formula, we label the equation (3)

take y to the other side, causing it to change to -y

x = 112 - y (3)

We then work with (2)

(10+x)/(6+y) = 5/3

We cross multiply

3(10+x) = 5(6+y)

We open the brackets

Making the equation simplified and labelling it (4)

30 +3x = 30 + 5y

Collect like terms

3x -5y = 30-30

3x -5y = 0 (4)

Remember from (3) we know that

x = 112 -y

So we put (3) in (4)

3(112 - y) - 5y = 0

Open bracket

336 -3y -5y =0

336 -8y = 0

Transfer -8y to the other side, changing to +8y

336 = 8y

Divide both sides by 8

336/8 = y

42 = y

y = 42

from (3) we know that x equals 112 - y

So we put y = 42 in (3)

x = 112 - y

x = 112 -42 = 70

x = 70

So therefore number of white golfs balls and striped golfs balls to be added to keep the same ratio is 70 and 42 respectively

4 0
3 years ago
Which logaritnmic equation equivalent to the exponential equation below 5c=125
nataly862011 [7]
I assume you meant to write 5^c = 125. The equivalent logarithmic expression for this would be ㏒₅125=c.
3 0
3 years ago
PLEASE HELP NTH TERM MATHS
fredd [130]

Answer:

odd numbers

Step-by-step explanation:

4 - 7 is 3, 7 - 12 is 5, 12 - 19 is 7, 19 to 28 is 9

So just keep counting

4 0
2 years ago
Read 2 more answers
What is the perimeter of the shape below?
Mashcka [7]

None of these choices are correct

The down side of the shape is unknown and cannot be found, therefore you cannot find the perimeter of the shape.

8 0
2 years ago
What is the discriminant of 4x^2 - 3x + 6 = 0
swat32

Answer:

8.4 or 6.2

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • -2x^4 +50x^2+0x-3/x-5
    6·1 answer
  • Jake and Mike took a different number of tests. Jake scored 85 points on each test. Mike's total score was 15 less than Jake's t
    8·2 answers
  • What is the volume of the figure ?
    8·2 answers
  • A private college advertised that last year their freshman students, on average, had a score of 1120 on the college entrance exa
    9·1 answer
  • Emily’s mother is 4 times as old as Emily now in 6 years Emily’s mother will be 3 times as old as Emily will be then how old is
    11·2 answers
  • How do i know if I need to use sin,cos,or tan?
    6·1 answer
  • Which function below has the following domain and range?
    8·1 answer
  • The number of bacteria in a lab experiment can be modeled by the function
    8·1 answer
  • Need help answer quick plzzzz ​
    15·1 answer
  • Find the midpoint of the segment with the following endpoints. (10, 6) and (4, 9)
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!