The Sizes of Two Matrices Are Given $1 \times 4$ ; B Is

question 268

Multiple Choice

The sizes of two matrices are given. Find the size of the product AB and the size of the product BA, if the given product
can be calculated.
-A is $1 \times 4$ ; B is $1 \times 4$ .

• A) \(\mathrm { AB }\) is \(4 \times 1\); BA is \(1 \times 4\).
• B) \(\mathrm { AB }\) is \(1 \times 1\); BA is \(4 \times 4\).
• C) \(\mathrm { AB }\) cannot be calculated; \(\mathrm { BA }\) cannot be calculated.
• D) \(\mathrm { AB }\) is \(1 \times 4\); BA is \(4 \times 1\).

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Definitions:

Confirmation Error

A cognitive bias that involves focusing on information that confirms existing beliefs and ignoring information that contradicts them.

Ethics Double-check

A review process designed to ensure that actions or decisions align with moral and professional standards of conduct.

Ethical Decision Making

The process of evaluating and choosing among alternatives in a manner consistent with ethical principles and values.

Ethical Shortcomings

Lapses or failures in behaving according to accepted moral standards, often leading to actions that are considered unethical.