Practicing Success
CUET Preparation Today
CUET
-- Mathematics - Section B1
Probability
A die is thrown 100 times . If getting an even number is considered a success, the variance of the number of successes, is
50
25
10
100
We have, n = 100 and $p = \frac{3}{6}=\frac{1}{2}$
∴ Variance $= npq = 25$