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
1
9/4
4/9
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
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