Math 143: Finite Matbematics Sample Exam Three- Page 2 of 10 Noveraber 30th, 201

Question

Math 143: Finite Matbematics Sample Exam Three- Page 2 of 10 Noveraber 30th, 2017 1. (10 points) Respondents to the 2012 General Social Survey (GSS) indicated the following cat- egorizations pertaining to the amount of influence the average citizen has on politics. (Dats from: https//gdataexplorer nore.org/variables/3972/vshow). Amount of Influence Number of Respondents None A little Some Quite a bit Agreat deal Tota 95 206 189 69 52 611 Find the probability that a randomly choen penon in the United States believes sbe or be bas the following amount of influence on politics (a) A little (b) Quite a bit or less: )Either A great deal or None: (d) Any amount of influence other than A little:

Explanation / Answer

a) probability(A little) =206/611 =0.3372

b)probability(quiet a bit or less) =(95+206+189+69)/611=0.9149

c)P(either A great deal or none) =(52+95)/611 =0.2406

d)P( not A little) =1-206/611=0.6628

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