Homework Help: Statistics

Posted by Jen on Monday, February 4, 2008 at 10:58am.

Use the Poisson Distribution to find indicated probability.
A naturalist leads whale watch trips every morning in March. Teh number of whales seen ha a Poisson distributyion with a mena of 2.2. Find the probability that on a randomly selected trip, the number of whales seen is 5.

Statistics - SraJMcGin, Monday, February 4, 2008 at 12:43pm
Thank you for using the Jiskha Homework Help Forum. This i s not my area, but here are some sites on Poisson Distribution:

1. http://en.wikipedia.org/wiki/Poisson_distribution

2. (part II of #1): http://en.wikipedia.org/wiki/Poisson_process

3. http://mathworld.wolfram.com/PoissonDistribution.html

4. http://hyperphysics.phy-astr.gsu.edu/Hbase/math/poifcn.html

5. http://www.itl.nist.gov/div898/handbook/eda/section3/eda366j.htm

6. (queing, etc.): http://home.ched.coventry.ac.uk/Volume/Vol4/listof.htm
Statistics - Jen-Can anyone else help me?, Monday, February 4, 2008 at 3:16pm
Help
Statistics - economyst, Monday, February 4, 2008 at 4:19pm
Jen:
If you went to the wikipedia site suggested by SraJMcGin, you would have the formula for calculating probabilities following a poisson distribution.

The Poisson distrbution is
f(k,a) =(a^k)*(e^-a)/k! where a is the expected observed in a time period, and k is the actual observed, and e is the exponential e. (Go to the wikipedia site; they can express formulas much better than here on Jiskha.)

In your example a=2.2, and k=5. Plug these into your formula. Hint: I get about 4.8%

Answer this Question

Related Questions

math - statistics - Football team makes in average 2 touchdowns per game. Use ...
Statistics - Find the probability when A. k = 2 and ë = 0.01 for Poisson ...
poisson distribution math - Mr Lee is planning to go fishing this weekend. ...
Statistics and Probability - Suppose you took 1000 random samples of size 200 ...
Statistics and Probability - Suppose you took 1000 random samples of size 200 ...
Probability - MY MAIN PROBLEM IS FIGURING OUT WHAT DISCRETE DISTRIBUTION TO USE...
statistics - Flaws in a carpet tend to occur with a Poisson distribution at a ...
statistics - 1. Observe the number of customers visiting a particular ATM Centre...
Statistics - On average 3 % of a certain type of TV tube burn out before their ...
statistics - Find the mean of the given probability distribution. The number of...

For Further Reading

First Name:
School Subject:
Answer: