SOLUTION: JJ wants to study the eating habits of baby elephants. If she notices that they eat on average 4.3 lbs of grass each hour. What is the probability that the new elephant will eat mo

Algebra ->  Probability-and-statistics -> SOLUTION: JJ wants to study the eating habits of baby elephants. If she notices that they eat on average 4.3 lbs of grass each hour. What is the probability that the new elephant will eat mo      Log On


   

Question 321248: JJ wants to study the eating habits of baby elephants. If she notices that they eat on average 4.3 lbs of grass each hour. What is the probability that the new elephant will eat more than 8 lbs of grass one hour?
Completely stuck on this probability and statistics problem, can someone please help me understand how to work this problem?
Answer by galactus(183) About Me  (Show Source):
You can put this solution on YOUR website!
This is a Poisson probability.
P%28x%29=L%5En%2Ae%5E%28-L%29%2Fn%21. Where L is the mean.
In this case, since they ask for more than 8, we sum up the probabilities from 0 to 8 and subtract from 1.
1-sum+%28%284.3%29%5En%2Ae%5E%28-4.3%29%2Fn%21%2Cn=0%2C8%29=.0317