25. You are conducting a survey at a college with 800 students, 50 faculty membe

Question

25. You are conducting a survey at a college with 800 students, 50 faculty members, and 150 administrative staff members. Each of these 1,000 individuals has a single listing in the campus phone directory. Suppose you were to cut up the directory and pull out one listing at random to contact. What is the probability it would be (a) a student, (b) a faculty member, (c) an administrative staff member, (d) a faculty or administrative staff member, and (e) anyone except an administrative staff member? (f) Explain your answers to someone who has never had a course in statistics.

Explanation / Answer

A) 800 students out of 1000 total people --> 80/100 chance or80% B) 50 faculty out of 1000 total people --> 5/100 chance or5% C) 150 admin staff out of 1000 total people --> 15 out of 100 or15% D) 150 + 50 faculty + admin staff = 200 total. 200 out of1000 total people = 20/100 chance or 20% E) 1000 total people - 150 admin staff = 850 non admin staff. 850 non admin staff out of 1000 total people --> 85/100 chanceor 85%

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