Poisson Probability Distribution

Poisson Formula: P(X=x)

• 
• 
• 
• 

X is Poisson Distribution. Mean & Variance formula

• 
• 
• 
• 

Assuming that breakdowns in electricity supply occur ramdomly with mean of one breakdown every 10 weeks. Find the probability of at least 2 breakdowns in any period of one week

• 0.0047

• 0.0952

• 0.0002

• 1.000

Poisson is a __________ probability distribution

• random

• discrete

• continuous

The mean number of accidents per month at a certain intersection is 3.What is the probability that in any given month exactly 4 accidents will occur at this intersection?

• 0.081

• 0.672

• 0.168