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Consider the following information regarding the number of men and women workers in three factories I, II and III.
 
Factory
Men
Women
I
23
18
II
47
36
III
15
16
 
Represent the above information in the form of a matrix. For example, what do the entry in the second row and first column represent?
 
A=iiiiii
 
The entry in the second row and the first column is .