mean of 100 items is 41.it was discovered that three items which should have been
60 ,70 ,80 were wrongly read as 40 ,20 ,50 respectively . the correct mean is ?
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Answer:
mean= 41
no of items = 100
Step-by-step explanation:
mean of 60,70,80 = 50
50+41 = 91
HOPE IT HELPS
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