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The correlation coefficient (often denoted as "r") quantifies the strength and direction of a linear relationship between two variables. A strong positive correlation (e.g., r = 0.9) indicates that as one variable increases, the other tends to increase as well. For instance, a high correlation between advertising spend and sales confirms their strong linear relationship, observed in the scatter plot. This metric is critical for assessing relationships before performing regression or predictive modeling. Why Other Options Are Wrong : A) Standard deviation measures variability, not relationships. C) Mean difference compares group averages, not correlations. D) P-value tests hypotheses but doesn’t quantify relationships. E) Variance measures the spread within a single variable, not between two.
Which nation was India's largest trading partner from January to July 2024?
Which organization has been designated as the Nodal Centre for ISRO's START programme?
The Ministry of Women and Child Development has released a centrally-sponsored scheme_____for the children to secure a healthy and happy childhood for e...
Who is appointed as the Ambassador of Japan to India?
Recently a new species of spider naming Pseudomogrus Sudhii has been discovered in which state of India?
Who received the 'Nritya Kalanidhi' award at the 17th Dance Festival of the Music Academy in Chennai?
Where in Uttar Pradesh is Artificial Limbs Manufacturing Corporation situated?
Which state signed a MoU with 23 companies at the World Economic Forum meeting in Davos, Switzerland worth Rs 30,000 crore.
What is the capital of Haryana?
The 21st edition of bilateral naval Exercise Varuna began on 16th January, 2023 it is between India and which other country?