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.
Badri Narayan won the Sahitya Akademi Awards 2022 for which of the following types of literary work?
Trilok Singh Basera also known as 'Iron Wall of India' was from which district of Uttarakhand?
How much did Union Bank of India commit to measure in terms of financed emissions through its signing of the PCAF in 2024?
PM Modi inaugurated the Integrated Terminal of Veer Savarkar International Airport, in which state/UT?
Tata Power Solar Systems Ltd has collaborated with which bank to ease the financing of rooftop solar installations and EV charging stations?
In which state did the inaugural Outlook Planet Sustainability Summit & Awards 2024 take place?
In January 2023, the 'Bailey Suspension Bridge' was inaugurated on which river of Jammu and Kashmir?
Dick Schoof was recently sworn in as the new Prime Minister of which country?
When was the Ramon Magsaysay Award presented to Deep Joshi?
Which of the following methods can be used to control deficient demand in the economy?