# Poisson Distribution

• May 9th 2007, 05:43 PM
Johny_Junior
Poisson Distribution
If 90% of students are right handed, use the Poisson distribution to estimate the probability that a sample of 80 students has 5 or more right-handed students.
• May 9th 2007, 09:47 PM
JakeD
Quote:

Originally Posted by Johny_Junior
If 90% of students are right handed, use the Poisson distribution to estimate the probability that a sample of 80 students has 5 or more right-handed students.

Calculate the mean number of right-handed students in the sample. Then use the Poisson distribution with that mean to calculate the estimated probability.
• May 9th 2007, 10:24 PM
Johny_Junior
Thanks for your help...but it still doesn't make much sense to me...:(
• May 9th 2007, 11:41 PM
JakeD
Quote:

Originally Posted by Johny_Junior
If 90% of students are right handed, use the Poisson distribution to estimate the probability that a sample of 80 students has 5 or more right-handed students.

Quote:

Originally Posted by JakeD
Calculate the mean number of right-handed students in the sample. Then use the Poisson distribution with that mean to calculate the estimated probability.

Quote:

Originally Posted by Johny_Junior
Thanks for your help...but it still doesn't make much sense to me...:(

Where are you stuck?