Hi,

value 180 was wrongly copied as 60 (120 shy)

correct mean =  = 14 

RELATED QUESTIONS

The mean of 50 observations was 160. It was detected on rechecking that the value 175 was  (answered by tommyt3rd)

Who's online? Tutor, please help.
The mean and standard deviation of 15 observations are  (answered by math_tutor2020)

The mean and standard deviation of a sample of 20 observations were found to be 75 and... (answered by stanbon)

the mean of 195 item was 45. later on it was discovered that the two items were wrongly... (answered by ewatrrr)

The mean of 205 items was 41. Later on it was discovered that two items were wrongly read  (answered by stanbon)

the mean of 10 observations was found to be 28. later, it was discovered that one... (answered by richwmiller)

hi Im not sure what kind of problem this is for sure but I think its a mixtuer problem.... (answered by ankor@dixie-net.com,richwmiller)

Suppose that the mean score of a class of 28 students was 73. The 18 male students in the  (answered by mananth)

Suppose that the mean score of a class of 35 students was 76. The 20 male students in the  (answered by ankor@dixie-net.com)