The Sample Data Below Shows the Number of Hours Spent

question 59

Multiple Choice

The sample data below shows the number of hours spent by 5 students over the weekend to prepare for Monday's Business Statistics exam. The sample standard deviation of the number of hours spent by the 5 students is closest to:

• A)3.6 hours
• B)4.1 hours
• C)13.2 hours
• D)16.5 hours

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Definitions:

Determinant

A scalar value that can be computed from the elements of a square matrix and encodes certain properties of the matrix.

Minors

The determinants of the smaller square matrices obtained by removing one row and one column from a square matrix, used in calculating the determinant of the matrix.

Matrix

A rectangular array of numbers, symbols, or expressions, arranged in rows and columns, used in mathematics and computer science.

Determinant

A scalar value that can be computed from the elements of a square matrix and offers information about the matrix, such as whether it's invertible.