Question
For an experiment we have the following data set: n =
4, ∑ X = a,∑ Y = 10,∑ XY = 21,∑ X2 = 30,∑ Y2 = 30 the correlation coefficient is -0.8 then the value of a is:Solution
The correct answer is C
Which agency is organising the anti-terror conference in Delhi where details of India’s first anti-terror policy will be shared?
Which Indian port is now the only authorized entry point for importing jute from Bangladesh?
Consider the following statements:
I. Recently Ahmedabad and Chennai have been featured the Time magazine’s list of World’s greatest ...
Who co-chaired the 12th India-Oman Joint Military Cooperation Committee meeting held in Muscat on January 31, 2024?
According to the IMF World Economic Outlook report, what is India’s growth rate in 2023?
Achyut Potdar, who passed away at 91, had worked in which organisation before starting his acting career?
When will Thailand roll out the Electronic Travel Authorisation (ETA) for visa-exempt travelers, including those from India?
What is the cash prize awarded to each recipient of the National Florence Nightingale Awards?
What was the percentage decline in the value of digital gold purchases via UPI in November 2025 compared to October 2025?
The Trusted Tour Operator Scheme (TTOS) introduced by South Africa is primarily aimed at boosting tourism from which two countries?
