can anyone can enlighten me on how to solve this? Are there any good approaches to tackle this kind of problem?
The sizes of e-mail messages received could be 1K bytes, 2K bytes, 3K bytes, 4K bytes or 5K bytes. All sizes are equally likely. What is the probability that 6 incoming emails comprise one 3K byte message, three 4K byte messages and two 5K byte messages?
Thanks in advance.