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frutty [35]
3 years ago
7

What is rank correlation?​

Mathematics
1 answer:
Irina-Kira [14]3 years ago
6 0

Step-by-step explanation:

it's any of several statistics that measure an ordinal association. Measures the degree of similarity between two rankings.

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How many of the positive divisors of 2160 are multiples of 3?
TEA [102]
30 of the divisors are multiples of 3

The factors of 2160 are 1, 2160, 2, 1080, 3, 720, 4, 540, 5, 432, 6, 360, 8, 270, 9, 240, 10, 216, 12, 180, 15, 154, 16, 135, 18, 120, 20, 108, 24, 90, 27, 80, 30, 72, 36, 60, 40, 54, 45, 48
These are all divisors of 2160 but only 30 are multiples of 3.
The ones that are NOT are 1, 2, 4, 5, 8, 10, 16, 20, 40 and 80

You can also do this using prime factors 2x2x2x2x3x3x3x5 = 2160 but it is harder to explain.
5 0
3 years ago
How does a tree diagram make it easier to tell which outcome occurs most often?
Vesnalui [34]

Answer:

Tree diagrams display all the possible outcomes of an event. Each branch in a tree diagram represents a possible outcome. Tree diagrams can be used to find the number of possible outcomes and calculate the probability of possible outcomes.

Step-by-step explanation:

8 0
3 years ago
How do I solve this systems of three equations problem?
Serhud [2]

Answer:

You have to eliminate one of the variables when the equations are added.

A) x + 2y + z = 10

B) 2x -y +3z = -5

C) 2x -3y -5z = 27

We mulutiply A) by 2 then add it to B and C

A) 2x + 4y + 2z = 20 and the sum =

6x = 42  Luckily, the "y" and "z" variables cancel out and we find:

x = 7  

Then we use x =7 in calcucating equation A) and B)

A) 2y + z = 3

B) -y + 3z = -19

THEN solve for y and z by eliminating variables.


Step-by-step explanation:


3 0
3 years ago
What is the domain of f(x)=9-x2
son4ous [18]

The domain is all real number

There is no limit to what x can be

Choice G

5 0
4 years ago
If i have to put a relfection on triangle ABC across the y-axis.
deff fn [24]

Answer:

A coordinates are (-2,2)

B coordinates are (-2,4)

C coordinates are (-5,3)

6 0
3 years ago
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