Q. In a poisson distribution mean is 16, then standard deviation is
A) 16
B) 256
C) 128
D) 4
Explanation
(d)
For a Poisson distribution, mean = variance
$\Rightarrow$ Variance = 16
$\therefore$ Standard deviation$= \sqrt{Variance}$
$= \sqrt{16} = 4$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.