Answer: d. -0.85
Step-by-step explanation:
Since we know that ,
The value of strong correlation coefficient r, lies between the absolute value of 0.75 to 1.
From all the given options (a. +0.30 b. +0.75 c. +1.3 d. -0.85 e. -0.05) ,
The absolute value of -0.85 (|-0.85|=0.85) is nearest to 1 among all.
(Note : Negative correlation coefficient mean there is negative association between the variables.)
Therefore , the correlation coefficient represents the strongest relationship between two variables is -0.85 .
Hence, the correct answer is d. -0.85 .
