T
TXX02
Guest
Online Advertising Mathematical Formula
1. Reach = Unique Users - Σ Uk ( 1 - P )k
-The sum is over all positive integers k = 1, 2, etc.
-Uk is the number of users turning exactly k pages
-P is the ratio of purchased impressions by total pages
Unique users who see the Ad n times:
2. Σ Uk C(k,n) Pn ( 1 - P )k - n
-the sum is over all positive integers greater or equal to n
C(k,n) = k! / [ n! (k-n)! ] are the binomial coefficients
1. Reach = Unique Users - Σ Uk ( 1 - P )k
-The sum is over all positive integers k = 1, 2, etc.
-Uk is the number of users turning exactly k pages
-P is the ratio of purchased impressions by total pages
Unique users who see the Ad n times:
2. Σ Uk C(k,n) Pn ( 1 - P )k - n
-the sum is over all positive integers greater or equal to n
C(k,n) = k! / [ n! (k-n)! ] are the binomial coefficients