Give the derivation of the variance for the binomial distribution.

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Give the derivation of the variance for the binomial distribution. 

Binomial Distribution
~P(Y=K) = (2) PK (1-P)n-k
=
42
V(Y) = E (Y²) - 4²
PK.
E(Y²) = 2/2 K² (K) ·pk. (1-P)n-k
-K
1-3
X+ (1+x) X
(1
x).
ACH
S
*** 80
K
5
-
S-S
E
HM
Transcribed Image Text:Binomial Distribution ~P(Y=K) = (2) PK (1-P)n-k = 42 V(Y) = E (Y²) - 4² PK. E(Y²) = 2/2 K² (K) ·pk. (1-P)n-k -K 1-3 X+ (1+x) X (1 x). ACH S *** 80 K 5 - S-S E HM
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X~Bin(n,p)

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