Some restaurants are famous for good food. Manager

Some restaurants are famous for good food. Restaurant manager claims that on a Saturday night for half an hour on average, 5 suits groups of visitors.

a) Make a number of possible distributions of groups of visitors of the restaurant for half an hour; Plot;

b) Find the numerical characteristics of the distribution;

c) Write down in general terms the probability distribution function and build her schedule;

g) What is the probability that three or more groups of visitors arrive at a restaurant for a 10 minute period of time?