the mean of 15 items is 34 it was found out , later on , that the two items 48 and 32 were wrong copies as 84 and 23 respectively . find out the correct mean.
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Answer:
32.2
Step-by-step explanation:
- Cost of 15 items=15*34=510
- Actual cost=510-84-23+32+48=483
- Correct mean=483/15=32.2
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