Q. The mean of 14 observations is 11. One more observation is included and the new mean becomes 12. The 15th observation is
A) 24
B) 20
C) 28
D) 26
✔ Correct Answer: 26
Exam Insight
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A) 24
B) 20
C) 28
D) 26
✔ Correct Answer: 26
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