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The average of 25 observations is 28. Later it was found that an observation 90 waswrongly entered as 40. What is the new average after correction? |
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Answer» Answer: 30 Step-by-step explanation: total sum =25*28=700 it should be 90 but WRITTEN as 40 so 50 more should be added new 700+50=750 750/25=30 new average is 30 hope this helps please mark me as brainliest |
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