If random error in the arithmetic mean of 100 observations is x, then the randow error in the arithmetic mean of 500 observations would be

If random error in the arithmetic mean of 100 observations is x, then

1.	If random error in the arithmetic mean of 100 observations is x, then the randow error in the arithmetic mean of 500 observations would be
Answer» 5X `x//5` 25X `x//25` ANSWER :(B)