Given:
Sample size, n = 52
correlation coefficient, r = -0.25
Let's find the coefficient of determination of the person's correlation.
To find the coefficient of determination, we have:
coefficient of determination = r²
Thus, we have:
coefficient of determination = r² = -0.25² = 0.0625
Therefore, the coefficient of determination is 0.0625
To find the degrees of freedom, apply the formula:
df = n - 2
Where
df is the degrees of freedom
n is the sample size = 52
Hence, we have:
df = 52 - 2 = 50
The degrees of freedom is = 50
ANSWER:
• Coefficient of determination = 0.0625
,
• Degrees of freedom = 50