Question

The mean of 50 observations was 180 It was observed that the value of 170 was wrongly copied as 120 find the correct mean

Answer 1

Answer:

x = 50*180

x = 50*180 - 140+170

x= 50*100+30/50

x= 530/50

x = 10.6

so, the mean is 10.6

hope this helps!

Step-by-step explanation: