in a university class that includes 120 students, mostly non-traditional, the mean age is 32, with
a standard deviation 12 students, and with a normal distribution. six of these students are
international students.
1. what is the probability that, if one student is picked at a random, he/she be a teenager (120 12
years old)? you need to (somewhat) critically think about this before tackling itll
2. what is the probability that if one student is selected at random, he/she will be an international
student?
3. what is the probability that if one student is selected at random, his/her age be between 28 to
30 years old?
4. what is the probability that if on student is selected at random, his/her age be between 28 to 36
years old?
5. suppose we select, at random, a sample of 9 students from this class. what is the probability
that the mean age of that sample will be more than 38 years old?
show your marki