Two distributions with 100 and 200 items have a mean of 20 and 10 respectively. The combined mean of two distributions will be —
CS CSEET · Business Economics & Fundamentals of Accounting and Auditing · PYQS · June 2013
Two distributions with 100 and 200 items have a mean of 20 and 10 respectively. The combined mean of two distributions will be —
Answer & Explanation:
Correct Answer: Option (C)
Correct answer: (C) 13.33. Combined mean = (100×20 + 200×10)/300 = 13.33.
Topics: Elementary Statistics
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