Question

4. Gravetter/Wallnau/Forzano, Essentials - Chapter 6 - End-of-chapter question 4 A psychology class consists of 32 freshmen and 48 sophomores. If the professor selects names from the class list using random sampling. What is the probability that the first student selected will be a freshman

Answer 1

32/80 or 2/5 simplified

Explanation:

P(Freshman) = 32/80 or 2/5 simplified

Answer 2

ANS.1

Freshmen F = 32

Sophomore S = 48

Total students = 80 students

P(F) = Favorables cases/Total cases

= 32/80

Hope this helps!