Answer:
provides information about the strength of a relationship
Step-by-step explanation:
A numerical measure of strength in the linear relationship between any two variables is called the Pearson's product moment correlation coefficient.
The co efficient of correlation is a pure number denoted by r , independent of the units in which the variables are measured that can range from+1 to -1 .
The sign of r indicates the direction of the cor relation.
When r= 0 it does not mean that there is no relationship . For example if the observed values lie exactly on a circle , there is a relationship between variables but r = 0 as r only measure linear cor relation.
The 2nd statement given is the correct answer.
It is not related to ordinal or nominal properties and it does show direction.
Answer:
Ok y= 2x + b
b referring to any number less than -2 and more than -2
so y=2x+4 can work
Step-by-step explanation:
parallel lines in slope-intercept form have the same slope, i.e. the same 'm' value or coefficient of <em>x</em><em> </em> but different interceptions
Answer:
o
Step-by-step explanation:
because 6x is B and 2 is C so that means A 0
Answer:
The interior and exterior angles total 180
3
x
+
(
x+
20
)
=
180
4
x
+
20
=
180
4
x
=
160
x
=
40
So the interior angle is 120 and the exterior is 60
360 divided by the exterior angle = number of sides
360
60
=6
6 sides,
6
×
120
=720 in total
720
180
=4
4 triangles
Answer:
To solve the question the answer is 35y2 - 5 (i think)
Step-by-step explanation:
Yes and it's actually very simple.
To start off:
Simplify the equation: multiply 7 by the numbers in the parentheses getting: 28y2 - 35 .......full equation: 7y2 + (28y2 - 35)
New equation: 7y2 + (28y2 - 35) now combine like terms this means adding each common variable together. in this case, 7y2 and 28y2 would be added together to simplify the equation. Add them together, the new equation is: 35y2 - 5
Lmk if you have any questions i hope this helps