A die is thrown 100 times . If getting an even number is considered a success, the variance of the number of successes, is
Answer & explanation
Correct answer: option 2
We have, n = 100 and $p = \frac{3}{6}=\frac{1}{2}$
∴ Variance $= npq = 25$
A die is thrown 100 times . If getting an even number is considered a success, the variance of the number of successes, is
Correct answer: option 2
We have, n = 100 and $p = \frac{3}{6}=\frac{1}{2}$
∴ Variance $= npq = 25$