Determine the indicated probability for a Poisson random variable with the given values of $\hat { \lambda }$ and t .
$\lambda = 0.4 , t = 4 , P ( \text { No more than } 3 )$
A) 0.2807
B) 0.7193
C) 0.7834
D) 0.9212

Question

Determine the indicated probability for a Poisson random variable with the given values of $\hat { \lambda }$ and  t .
$\lambda = 0.4 , t = 4 , P ( \text { No more than } 3 )$
A)  0.2807 
B)  0.7193 
C)  0.7834 
D)  0.9212

Quizplus · Accepted Answer

The Poisson parameter is $\lambda t = 0.4 \times 4 = 1.6$. The probability of no more than 3 events is the sum of probabilities for 0, 1, 2, and 3 events, which equals 0.9212.

Determine the Indicated Probability for a Poisson Random Variable with the Given