state gov OSSC CGL (Combined Graduate Level) Mock Test 2025-26 Quantitative Aptitude Elementary Statistics
If the arithmetic mean of 13 observations 385, 386, 388, 379, 387, 381, 383, 378, 386, 387, X, 381, 385 is 375. Find the value of "X" in the observations.
1
269
2
273
3
275
4
271