OBJECTIVE FORESTRY

FORESTRY

AGRICULTURAL STATISTICS AND ECONOMICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The correlation coefficient measures
A
whether there is a relationship between two variables
B
the strength of the relationship between two quantitative variables
C
whether or not a scatterplot shows an interesting pattern
D
the strength of the linear relationship between two quantitative variables
Explanation: 

Detailed explanation-1: -Correlation coefficients are used to measure the strength of the linear relationship between two variables. A correlation coefficient greater than zero indicates a positive relationship while a value less than zero signifies a negative relationship.

Detailed explanation-2: -The correlation coefficient is measured on a scale that varies from + 1 through 0 to – 1. Complete correlation between two variables is expressed by either + 1 or-1. When one variable increases as the other increases the correlation is positive; when one decreases as the other increases it is negative.

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