mean of 46 items is 30.it was discovered that three items which should have been 33, 38, 39 were wrongly read as 25, 30, 35 respectively. the correct mean is.
pleas answer fast its urgent
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Answer:
50
Step-by-step explanation:
Sum of 100 items =49×100=4900
Sum of items added =60+70+80=210
Sum of items replaced =40+20+50=110
New sum =4900−110+210=5000
∴ new mean
5000/100
=50
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