defence exam ITBP (Telecommunication) Head Constable Mock Test 2024 Mathematics Statistics Measures of Central Tendency
If M is the mean of n observations x1 - k, x2 - k, x3 - k, _ _ _, xn - k, where k is any real number, then what is the mean of x1, x2, x3, _ _ _, xn?
1
M
2
M + k
3
M - k
4
kM