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macyfrakes
22.07.2019 •
Mathematics
Pet ownership suppose that 25% of people have a dog, 29% of people have a cat, and 12% of people own both. what is the probability that someone owns a dog or a cat
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Ответ:
There is a 42% probability that someone owns a dog or a cat.
Step-by-step explanation:
We solve this problem building the Venn's diagram of these probabilities.
I am going to say that:
A is the probability that a person has a dog.
B is the probability that a person has a cat.
We have that:
In which a is the probability that a person has a dog but not a cat and
is the probability that a person has both a dog and a cat.
By the same logic, we have that:
We start finding the values from the intersection of these sets:
12% of people own both.
This means that![A \cap B = 0.12](/tpl/images/0119/2200/c709f.png)
29% of people have a cat.
This means that
. So:
25% of people have a dog
This means that
. So:
What is the probability that someone owns a dog or a cat?
There is a 42% probability that someone owns a dog or a cat.
Ответ:
It is logos.
Explanation:
Logos is a persuasion technique involving logic, and it is a fact that everyone dies one day. According to this logic if you are a man; you will die one day.