tangia
23.04.2021 •
Mathematics
There are 25 students in a sixth-grade class. On a cold winter day in February, many of the students had runny noses and sore throats. After examining each student, the school nurse constructed the following table:
Sore throat No sore throat
Runny nose 5 4
No runny nose 6 10
Find the probability that a randomly-selected student has a runny nose.
0.36
0.64
1.25
0.20
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