Geometric Distribution

Question 1

Geometric distribution models…

Answer 1

It models the numbers of failure (trials) before the first success in a series of Bernoulli trials

Question 2

The probability distribution is given by

Answer 2

f(x)=q^(x-1)P
q+p=1
f(x)=(1-p)^(x-1)P 
Mean =1/p
Variance =(1-p)/p =1/p -1

Question 3

Uses of Geometric distribution

Answer 3

• it is used in cost benefit analysis
• it is used in time management
• it is used in sports