3 marksStandard
The two-way table below shows the number of people who own a cat and who own a dog.
| Dog | No dog | |
|---|---|---|
| Cat | 3 | 4 |
| No cat | 2 | 1 |
One person is chosen at random.
- (a)[3]
Given that this person owns a dog, find the probability that they own a cat. Give your answer as a decimal or simplified fraction.
Work it out, then check it
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