In a particular city, 32% of people own a cat. I select 120 people at random....
In a particular city, 32% of people own a cat. I select 120 people at random. a) What is the probability that fewer than 40 own a cat? b) What is the probability that more than 50 own a cat? c) What is the probability that exactly 42 people own a cat?
Homework Answers
Here p=0.32 is same for all, n=120 is constant, events are independent and only two outcomes
Hence all the properties of binomial distribution is satisfied hence we will use binomial distribution
a.
b. 
C. 
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