Given $f ( x ) = \sqrt { 15 + x ^ { 2 } }$

question 90

Multiple Choice

Given $f ( x ) = \sqrt { 15 + x ^ { 2 } }$ , find $f ( - 1 )$ .

• A)16
• B) -4
• C) \(\sqrt { 14 }\)
• D) 14
• E) 4

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Definitions:

Chi-square Distribution

A probability distribution commonly used in statistical significance tests.

Quantity

A property that can exist as a multitude or magnitude, often measured and expressed as a number.

Confidence Interval

A range of values derived from sample data that is likely to contain the value of an unknown population parameter, with a specified level of confidence.

Population Variance

The measurement of how data points in an entire population are spread out from the mean of the population.