Some restaurants are famous for good food. Manager

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?

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Solution of the problem