Use the Poisson Distribution to find the indicated probability. Round to three decimal places when necessary.
-A naturalist leads whale watch trips every morning in March. The number of whales seen has a Poisson distribution with parameter $\lambda$ = 4.1. Find the probability that on a randomly selected trip,
The number of whales seen is
A)3. 0.19
B)0.324
C)0.381
D)0.571

Question

Use the Poisson Distribution to find the indicated probability. Round to three decimal places when necessary.
-A naturalist leads whale watch trips every morning in March. The number of whales seen has a Poisson distribution with parameter $\lambda$ = 4.1. Find the probability that on a randomly selected trip,
The number of whales seen is 
A)3. 0.19
B)0.324
C)0.381
D)0.571

Quizplus · Accepted Answer

The probability of seeing 3 whales is given by the Poisson distribution with parameter $\lambda$ = 4.1:$$P(X = 3) = \frac{e^{-4.1}4.1^3}{3!} = 0.190$$

Use the Poisson Distribution to Find the Indicated Probability λ\lambdaλ = 41 Find the Probability That on a Randomly Selected Trip

Use the Poisson Distribution to Find the Indicated Probability $\lambda$ = 41 Find the Probability That on a Randomly Selected Trip