Find the Magnitude of V $\mathbf { v } = 4 \mathbf { i } + \mathbf { j } - \mathbf { k }$

question 63

Multiple Choice

Find the magnitude of v. $\mathbf { v } = 4 \mathbf { i } + \mathbf { j } - \mathbf { k }$

• A) \(\| \mathbf { v } \|\) = \(\sqrt { 4.72 }\)
• B) \(\| \mathbf { v } \| =\) \(\sqrt { 2.72 }\)
• C) \(\| \mathbf { v } \| =\) \(\sqrt { 19 }\)
• D) \(\| \mathbf { v } \| =\) \(4 \sqrt { 2 }\)
• E) \(\| \mathbf { v } \| =\) \(3 \sqrt { 2 }\)

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Definitions:

Null

Often refers to a value of zero in various contexts, such as null pointers in programming or null hypotheses in statistics.

Alpha

A threshold level used in statistics to determine the significance of results, often set at 0.05 or 5%.

Critical Value

A threshold in hypothesis testing that determines whether to reject the null hypothesis, based on the distribution of a test statistic.

Hypotheses

Are statements or predictions that can be tested by scientific research to either be supported or refuted through evidence.