asked 124k views
0 votes
Suppose 70​% of kids who visit a doctor have a​ fever, and 45​% 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?

I am stuck on this question, sadly I just did a lot of these for my exams but I forget how to solve it. Someone help??

asked
User Achshar
by
8.4k points

2 Answers

4 votes
70/100 = 0.7%
45/100 = 0.45%
0.7 x 0.45 = 0.31
0.31= 31%
31% is your answer sir
answered
User Eldhose
by
7.7k points
3 votes
To find the probability that a kid has both a fever and a sore throat, multiply the two probabilities together: 70% * 45% = 31.5%
answered
User Philipp Ryabchun
by
8.3k points
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