# Suppose a population has 100 observations 101, 102,..., 200, and another population has 100 observations 151,152,...,250. If represent the variances of the two populations, respectively, then   is Option 1) 1 Option 2) 9/4 Option 3) 4/9 Option 4) 2/3

As we learnt in

Variance -

In case of discrete data

Now  x A={101,102,...200}

Similarly  , B={1.51,152,....250}

Then

from(1) and (2),

but

from (1) and (2)

Option 1)

1

Option 2)

9/4

Option 3)

4/9

Option 4)

2/3

## Most Viewed Questions

### Preparation Products

##### Knockout JEE Main April 2021 (One Month)

Personalized AI Tutor and Adaptive Time Table, Self Study Material, Weekend Live Classes, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.

₹ 14000/- ₹ 4999/-
##### Knockout JEE Main May 2021

Personalized AI Tutor and Adaptive Time Table, Self Study Material, Weekend Live Classes, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.

₹ 22999/- ₹ 9999/-
##### Test Series JEE Main May 2021

Unlimited Chapter Wise Tests, Unlimited Subject Wise Tests, Unlimited Full Mock Tests, Get Personalized Performance Analysis Report,.

₹ 6999/- ₹ 2999/-
##### Knockout JEE Main May 2022

Personalized AI Tutor and Adaptive Time Table, Self Study Material, Live Classes, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.

₹ 34999/- ₹ 24999/-