Question 1 Consider a 3 dimensional contingency table. Decide if the following statements are true or false. Justify your answers. (a) The joint probability of the three variables according to the model [12][23] is Pi+kP+jk Pijk = P++k

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Counting And Probability
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Question 1
Consider a 3 dimensional contingency table. Decide if the following statements are true or
false. Justify your answers.
The joint probability of the three variables according to the model [12][23] is
Pi+kP+jk
(a)
Pijk
P++k
Consider the model [12][13][23], then for at least one of the three variables
(b)
the marginal and the conditional odds ratio coincide.
Given the model [12][23], the marginal table
(c)
exhibit either association or no association.
ollapsed over variable 2 can
(d)
Given the model [1][23], the marginal table collapsed over variable 3 can
exhibit either association or no association.
Transcribed Image Text:Question 1 Consider a 3 dimensional contingency table. Decide if the following statements are true or false. Justify your answers. The joint probability of the three variables according to the model [12][23] is Pi+kP+jk (a) Pijk P++k Consider the model [12][13][23], then for at least one of the three variables (b) the marginal and the conditional odds ratio coincide. Given the model [12][23], the marginal table (c) exhibit either association or no association. ollapsed over variable 2 can (d) Given the model [1][23], the marginal table collapsed over variable 3 can exhibit either association or no association.
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