- A25.4
- B21.4
- C23.4
- D46.8
Step-by-Step Solution
Wrong total = . Correct total = 100 - 13 + 30 = 117. Correct mean = 117 / 5 = 23.4.
Answer: C) 23.4
Priya found the mean of 5 observations to be 20.
Later she discovered that an observation 30 was wrongly entered as 13.
Find the correct mean.
Class 7Arithmetic MeanData Handling
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