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N a poisson probability problem, the rate of errors is one every two hours. what is the probability of at most three defects in four hours
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N a poisson probability problem, the rate of errors is one every two hours. what is the probability of at most three defects in four hours
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May 20, 2018
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N a poisson probability problem, the rate of errors is one every two hours. what is the probability of at most three defects in four hours
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Kevin Hopps
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Mean for each hour = 1
Mean for four hours, m = 4
P(x,m)=m^x*e^(-m)/x!
where x is number of defects.
P(X<=3,4)
=P(X=0,4)+P(X=1,4)+P(X=2,4)+P(X=3,4)
=0.01832+0.07326+0.14653+0.19537
=0.43355
Probability of at most 3 defects in four hours is 0.43355
Wisely D Cruizer
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May 24, 2018
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