Question

Suppose 80​% of kids who visit a doctor have a​ fever, and 25​% of kids with a fever have sore throats.​ What's the probability that a kid who goes to the doctor has a fever and a sore​ throat?

Answer 1

So what you do is find 25% of 80% of 100%. So, 8 out of 10 kids have a fever, and 2 out of 8 kids have a sore throat. So you would have 5 out of 10 kids have a sore throat, and a fever