Question

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 ?

Answer 1

Answer:

mean= 41

no of items = 100

Step-by-step explanation:

mean of 60,70,80 = 50

50+41 = 91

HOPE IT HELPS