Answer:
The answer to the question would be D
<u>Answer-</u>
<em>A. strong negative correlation.</em>
<u>Solution-</u>
<u>Direction of a relationship</u>
- Positive- If one variable increases, the other tends to also increase. If one decreases, the other tends to also. It is represented by positive numbers(i.e 0 to 1).
-
Negative- If one variable increases, the other tends to decrease, and vice-versa. It is represented by negative numbers(i.e 0 to -1)
<u>Strength of a relationship</u>
- Perfect Relationship- When two variables are linearly related, the correlation coefficient is either 1 or -1. They are said to be perfectly linearly related, either positively or negatively.
- No relationship- When two variables have no relationship at all, their correlation is 0.
As in this case, correlation coefficient was found to be -0.91, which is negative and close to -1, so it is a strong negative correlation.
Answer:
y = 4x+48
Step-by-step explanation:
Slope intercept form is y=mx+b. We already know the value for m(4), so we can plug in the x and y coordinates for x and y in the equation. This gives us 12=4(-9)+b. Solve for b to get 48
Answer:
12.5
Step-by-step explanation:
12 is out of the picture and .5 is a tenth itself so it wouldn't change at all
Answer:
The slope of the line that passes through these two points is 2/5
hope this helps ;)
Step-by-step explanation:
to find the slope (m) use the slope formula
m= y2-y1 / x2-x1
*plug in your points*
m= 4-2 / 3- -2 note here the <u>3- -2</u> changes to <u>3+2</u>
solve for m
m= 2/ 5
slope= 2/5
