How do you solve this first off?
Answer:
15%
Step-by-step explanation:
6/40=3/20=.15=15%
Answer: Ian is 25 and craig is 20
Step-by-step explanation:
(45 - 5) /2 +5 to one of them
Answer: Our required probability is 0.175.
Step-by-step explanation:
Since we have given that
Average of 5 e-mails messages per day.
so, ![\lambda=5](https://tex.z-dn.net/?f=%5Clambda%3D5)
We need to find the probability that on a randomly selected day your professor will have 5 messages.
Let X be the number of messages in poisson distribution.
So, P(X=5) is given by
![\dfrac{\lambda^xe^{-\lambda}}{x!}\\\\=\dfrac{5^5e^{-5}}{5!}\\\\=0.175](https://tex.z-dn.net/?f=%5Cdfrac%7B%5Clambda%5Exe%5E%7B-%5Clambda%7D%7D%7Bx%21%7D%5C%5C%5C%5C%3D%5Cdfrac%7B5%5E5e%5E%7B-5%7D%7D%7B5%21%7D%5C%5C%5C%5C%3D0.175)
Hence, our required probability is 0.175.