Answer:
C) 0.7
Step-by-step explanation:
Since as the age of tree increases, its diameter of the trunk also increases. So it is a positive correlation. Thus, it's value lies between 0 to 1.
Also, Here not very strong correlation exists as the diameter of trunk also depend on the sunlight and other nutrients. So, 1 is not possible answer.
Hence, 0.7 is the correct answer.
Correlation shows the strength of the relation between two variables.
The value of the correlation lies between -1 to +1.
Correlation is said to be positive if increasing/decreasing of the one variable, also increases/decreases the values of the other variable. Its value lies between 0 to 1.
Correlation is said to be negative if increasing/decreasing the one variable, also decreases/increases the values of the other variable. Its value lies between -1 to 0.
