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.
Answer:
Step-by-step explanation:
6 x 20 = 120
10 - 6 = 4 and (8+6) - 20 = 6
(4 x 6) / 2 = 12
120 + 12 = 132
Answer:
k = - 5/√3 = - (5√3)/3
Step-by-step explanation:
5x + ky = 20
y = (- 5/k) * x + (20/k)
Line equation: y = mx + b m: slope m = - 5/k
60° with x-axis (suppose it's positive x axis): slope m = tan 60° = √3
- 5/k = √3
k = - 5/√3 = - (5√3)/3
Answer:
2/5 or 40%
Step-by-step explanation:
1+1 (amount of numbers)= 2
2/5 (amount of possible results)
= 40%
So there will be a 40% chance for the arrow to land on 1 or 5
