Answered: The following contingency table gives…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The following contingency table gives the results of a sample survey of South African male and female respondents with regard to their preferred type of cool drink:

	Coke	Fanta	Sparletta	Total
No. of males	30	70	50	150
No. of females	120	40	90	250
Total	150	110	140	400

1.1.1) What is the probability of selecting a respondent who is male or who prefers Coke?

1.1.2) What is the probability of selecting a male respondent, given that the preferred cool drink is Sparletta?

1.1.3) What is the probability of randomly selecting a respondent who is female and prefers Fanta?

1.1.4) What is the probability of selecting a respondent who does not prefer Fanta?

1.1.5) What is the probability of randomly selecting a female respondent from the sample?

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