n the matrix BA, the first entry means that there are voters and the second entry means that there are voters

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter2: Systems Of Linear Equations
Section2.2: Direct Methods For Solving Linear Systems
Problem 22EQ: Consider the matrix A=[2314]. Show that any of the three types of elementary row operations can be...
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In a certain town, the proportions of voters voting Liberal and Conservative by various age groups is summarized by matrix A, and the population of voters in the town by age group is given by matrix B. Interpret the entries of the
matrix product BA.
Lib. Cons.
Under 30
0.62 0.38
30-50 0.51 0.49 = A
Over 50 0.24 0.76
B =[ 2000
Under 30
In the matrix BA, the first entry means that there are
voters
8000 1000]
30-50 Over 50
and the second entry means that there are voters
Transcribed Image Text:In a certain town, the proportions of voters voting Liberal and Conservative by various age groups is summarized by matrix A, and the population of voters in the town by age group is given by matrix B. Interpret the entries of the matrix product BA. Lib. Cons. Under 30 0.62 0.38 30-50 0.51 0.49 = A Over 50 0.24 0.76 B =[ 2000 Under 30 In the matrix BA, the first entry means that there are voters 8000 1000] 30-50 Over 50 and the second entry means that there are voters
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