Determine Whether Matrix B Is the Inverse of Matrix a by Finding

question 44

Multiple Choice

Determine whether matrix B is the inverse of matrix A by finding the product AB.
- $$A = \left[ \begin{array} { c c } 10 & 1 \\- 1 & 0\end{array} \right] , B = \left[ \begin{array} { r r } 0 & 1 \\- 1 & 10\end{array} \right]$$

• A) \(B \neq A ^ { - 1 }\)
• B) \(B = A ^ { - 1 }\)

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Definitions:

Null Hypothesis

A hypothesis that there is no effect or no difference, and it serves as the default or starting assumption in hypothesis testing.

Point Estimate

A single value (or point) derived from a sample that serves as the best estimate of an unknown population parameter.

Hourly Wages

Hourly wages are payments made to workers based on the number of hours worked, typically quoted as an amount of money per hour.

Margin Of Error

The ± value added to and subtracted from a point estimate in order to develop an interval estimate of a population parameter.