Find the Interval in Which the Equation Has at Least $$x ^ { 4 } - 8 x ^ { 2 } + 15 = 0$$

question 15

Multiple Choice

Find the interval in which the equation has at least one real root. $$x ^ { 4 } - 8 x ^ { 2 } + 15 = 0$$

• A) \(\quad - 1\) and 0
• B) 0 and 1
• C) \(\quad 3\) and 4
• D) 2 and 3
• E) \(\quad - 4\) and \(- 3\)

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Definitions:

Ancestral Characters

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Maximum Likelihood

A statistical method for estimating the parameters of a model, where the estimated parameters maximize the likelihood of observing the given sample data.

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Scientists who study the diversity of life and the evolutionary relationships between organisms, classifying them into a systematic framework.

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