Question

The mean of 50 observation is 38. Later on it was known that the value of one observation was taken

as 5, instead of -5. Find the correct mean.​

Answer 1

Answer:

1890

Step-by-step explanation:

Given

Number of observations= 50

Mean= 38

Mean= Sum of the observations/Number of the observations

38=Sum of the observations/50

38×50= Sum of the observations

1900=Sum of the observations

Wrong observation=5

Therefore, 1900-5

= 1895

Correct observation= -5

Therefore, 1895+(-5)

= 1890

Hence, 1890 is the correct mean

Hope it helps!!