# Math Help - Poisson Distribution

1. ## 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.
Please help with this problem!

2. 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.
Please help with this problem!
Calculate the mean number of right-handed students in the sample. Then use the Poisson distribution with that mean to calculate the estimated probability.

3. Thanks for your help...but it still doesn't make much sense to me...

4. 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.
Please help with this problem!
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.
Originally Posted by Johny_Junior
Thanks for your help...but it still doesn't make much sense to me...
Where are you stuck?