Complete Question:
Based on the ordered pairs in the data below, state whether there is no correlation, a weak correlation, or strong correlation. If there is indeed a correlation, determine whether the correlation is negative or positive.
X: 1, 2, 3, 4, 5, 6, 7, 8, 9,
Y: 2, 3, 8, 10, 26, 38, 46, 50, 68
Answer:
The data above has:
A strong correlation
A positive correlation
Explanation:
Using the linear regression calculator,
There exist a strong correlation between the X and Y variables, This is evident with a correlation Coefficient(r) value of 0.976 which is very close to 1
The correlation is a positive correlation as an increase in X value correlates to a corresponding increase in the Y variable. Also the obtained correlation Coefficient value is positive.