Saturday

January 31, 2015

January 31, 2015

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

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 12:43pmThank 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 3:16pmHelp

- Statistics -
**economyst**, Monday, February 4, 2008 at 4:19pmJen:

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 ...

Binomial and Poisson distribution - A machine produces ribbon in which flaws ...

Statistics - The number of traffic accidents per day on a certain section of ...

poisson distribution math - Mr Lee is planning to go fishing this weekend. ...

Statistics - Find the probability when A. k = 2 and ë = 0.01 for Poisson ...

Statistics and Probability - Suppose you took 1000 random samples of size 200 ...

Statistics and Probability - Suppose you took 1000 random samples of size 200 ...

Statistics - 2. The arrivals of customers at a drive-in banking window are ...

Probability - MY MAIN PROBLEM IS FIGURING OUT WHAT DISCRETE DISTRIBUTION TO USE...

Statistics - On average 3 % of a certain type of TV tube burn out before their ...