Same chapter3 marksDifficulty: Medium
The mean of 6 numbers is 20. If one number is removed the mean of the rest is 22. Find the number removed.
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3 marksDifficulty: Medium
The mean of eight numbers is 15. If each number is increased by 2, find the new mean.
Original Khojo Papers practice question — not from a past board paper.
Answer
17
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Adding a constant to every observation adds that constant to the mean.
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