True/False Positive/Negative

What's the difference?
- True Positive
- True Negative
- False Positive
- False Negative

- Positive/Negative is the reported result.

- True/False is the reported result is right or not.

• True Positive: you're sick, and report says you are sick, too. -> good!
• True Negative: you're not sick, and report says you not sick. -> good!
• False Positive: you're not sick, but the report says you are sick. -> bad!
• False Negative: you're sick, but the report says you are not sick. -> bad!