Question

the two - way table shows the results of a survey. find and int
own a cat
yes no
own a dog yes 104 208
no 186 98
people own a cat.
people do not own a cat.
people own a dog.
people do not own a dog.

Explanation:

Step1: Calculate people who own a cat

Add the number of people who own a cat and a dog ($104$) and the number of people who own a cat but not a dog ($186$).
$$104 + 186=290$$

Step2: Calculate people who do not own a cat

Add the number of people who do not own a cat but own a dog ($208$) and the number of people who do not own a cat and do not own a dog ($98$).
$$208+98 = 306$$

Step3: Calculate people who own a dog

Add the number of people who own a dog and a cat ($104$) and the number of people who own a dog but not a cat ($208$).
$$104+208=312$$

Step4: Calculate people who do not own a dog

Add the number of people who do not own a dog but own a cat ($186$) and the number of people who do not own a dog and do not own a cat ($98$).
$$186 + 98=284$$

Answer:

People who own a cat: $290$; People who do not own a cat: $306$; People who own a dog: $312$; People who do not own a dog: $284$