Mathematics, 18.03.2021 02:30 belindajolete

3 pts An upper-level sociology class has 120 registered students: 34 seniors, 57
juniors, 22 sophomores, and 7 freshmen.
a. Imagine that you choose one random student from the classroom
(perhaps by using a random number table). What is the probability that
the student will be a junior?
b. What is the probability that the student will be a freshman?
C. If you are to select a disproportionate sample of size 20 from the
classroom, with equal numbers of students from each class level in the
sample, how many freshmen will there be in the sample?

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3 pts An upper-level sociology class has 120 registered students: 34 seniors, 57
juniors, 22...

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