Help with statistics problem, thank you!

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Question description

McDonald's has a 95% recognition rate. An exec wants to test this on 15 people.

A) Show that we can use a binomial probability distribution if we assume that a success is someone recognizing the brand.

B) Find the probability of having 13 or more people recognize the brand.

C) Would you consider it unusual/unlikely if less than 13 people (at most 12) recognized the brand? Why or why not?

In class we have only been using the n,p,x formula on calculators b/c our prof. doesn't want us to do longform.

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