6. The probability W (n) that an event characterized by a probability p occurs n times in N trials was shown by binomial distribution W(n) = Consider the situation where the probability p is small and n << N (a) Show that (1-p)N-ne-Np (b) Show that N! (N − n)! (c) From (b) show it reduces to where A = Np ≈N" N! n!(N-n)!P" (1-p) N-n W(n): = 1² n! e-t
6. The probability W (n) that an event characterized by a probability p occurs n times in N trials was shown by binomial distribution W(n) = Consider the situation where the probability p is small and n << N (a) Show that (1-p)N-ne-Np (b) Show that N! (N − n)! (c) From (b) show it reduces to where A = Np ≈N" N! n!(N-n)!P" (1-p) N-n W(n): = 1² n! e-t
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question
![6. The probability W (n) that an event characterized by a probability p occurs n times in N trials was
shown by binomial distribution
W(n) =
Consider the situation where the probability p is small and n << N
(a) Show that (1-p)N-ne-Np
(b) Show that
N!
(N − n)!
(c) From (b) show it reduces to
≈N"
N!
n!(N-n)!P" (1-p) N-n
W(n):
where A = Np
(d) From (c), show that properly normalized
(e) Calculate the mean and variance
=
1²
n!
ext](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff0fdac81-9bb6-4a4a-9452-3063d3fed752%2Fb5a6a5ba-24ae-4cb6-bc4e-c45c455e87e6%2Fpqcm1ve_processed.png&w=3840&q=75)
Transcribed Image Text:6. The probability W (n) that an event characterized by a probability p occurs n times in N trials was
shown by binomial distribution
W(n) =
Consider the situation where the probability p is small and n << N
(a) Show that (1-p)N-ne-Np
(b) Show that
N!
(N − n)!
(c) From (b) show it reduces to
≈N"
N!
n!(N-n)!P" (1-p) N-n
W(n):
where A = Np
(d) From (c), show that properly normalized
(e) Calculate the mean and variance
=
1²
n!
ext
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