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Let A be a 3 × 4 matrix. B be a 4 × 5 matrix, and C be a 4 × 4 matrix. Determine which of the following products are defined and find the size of those that are defined.
a) AB
b) BA
c) AC
d) CA
e) BC
f) CB
keywords: multiplying, multiplication, matrices
Take a confidence interval for the difference in the average of renting between the first andthird hotel.
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