Use a Calculator to Give the Real Number Value $$y = \cot ^ { - 1 } ( 2.5181552 )$$

question 146

Multiple Choice

Use a calculator to give the real number value. Round the answer to 7 decimal places.
- $$y = \cot ^ { - 1 } ( 2.5181552 )$$

• A) \(2.1658824\)
• B) \(0.3780178\)
• C) \(6.8341176\)
• D) \(1.1927785\)

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Definitions:

Degrees of Freedom

The number of independent values or quantities that can vary in an analysis without violating any constraints.

Hypothesis Test

A procedure in statistics to determine if there is enough evidence to reject a null hypothesis in favor of an alternative hypothesis.

Chi-square Distribution

A statistical distribution used particularly in hypothesis testing, derived from the sum of the squares of a set of variables that follow a normal distribution.

Critical Value

A point on the scale of the test statistic beyond which the null hypothesis is rejected.