Answered: Suppose that a group of 1000 people was…

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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Data Mining

Suppose that a group of 1000 people was surveyed. The gender of each person was noted. Each person was polled as to whether his or her preferred genre of movies was drama, action, sci-fi, or comedy. Thus, we have two attributes, gender, and preferred_genre_of_movies. The observed frequency (or count) of each possible joint event is summarized in the following contingency table.

	male	female	non-binary	total
drama	70	250	30	350
action	185	20	45	250
sci-fi	100	160	15	300
comedy	30	70	10	150
total	400	500	100	1000

What are the expected frequencies of the cells (female, action) and (non-binary, drama)?

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