JEE Discussions - The Random Error In The Arithmetic Mean Of 100 Observations Is X; Then The Random Error In The Arithmetic Mean Of 400 Observations Would Be?

The Random Error In The Arithmetic Mean Of 100 Observations Is X; Then The Random Error In The Arithmetic Mean Of 400 Observations Would Be?

Abhishek 4 Years Ago

160

The random error in the arithmetic mean of 100 observations is x; then the random error in the arithmetic

mean of 400 observations would be

(1) 4x

(2) 1/₄x

(3) 2x

(4) 1_/2x

asked Jun 15 12:00:00 AM

Q: 350 A: 0