There are 25 students in Mrs. Y's eighth-grade class. On a cold winter day in February, many of the students had runny noses or sore throats. Round your answers to three decimal places.
|
Sore Throat |
No Sore Throat |
| Runny Nose |
6 |
12 |
| No Runny Nose |
4 |
3 |
a. Find the probability that a randomly selected student has a runny nose
b. Find the probability that a randomly selected student has a sore throat or a runny nose
c. Find the probability that a randomly selected student has neither a sore throat nor a runny nose
d. Find the probability that two different randomly selected students have a runny nose
e. Find the probability that a randomly selected student a sore throat given that he has a runny nose.