If M is the mean of n observations x₁ – k, x₂ – k, …, xₙ – k, where k is any real number, then what is the mean of x₁, x₂, …, xₙ? - NDA Mathematics 2021 (I)

Two dice each numbered from 1 to 6 are thrown together. Let A and B…

An urn contains one black ball and one green ball. A second urn contains one…

What is the most probable number of successes in 10 trials with probability of success…

If M is the mean of n observations x₁ – k, x₂ – k, …, xₙ – k, where k is any real number, then what is the mean of x₁, x₂, …, xₙ?