Graph the Sequence Defined By $a _ { n } = ( - 1 ) ^ { n } \frac { 2 n + 1 } { n + 2 }$

question 90

Short Answer

Graph the sequence defined by $a _ { n } = ( - 1 ) ^ { n } \frac { 2 n + 1 } { n + 2 }$ .
Use the graph to guess at the convergence or divergence of the sequence.

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Definitions:

Friedman Test

A non-parametric statistical test used to compare three or more matched or paired groups across multiple test conditions or times, assessing differences in rankings.

Ordinal Data

A type of categorical data that has a meaningful order or ranking among the categories but not a measurable distance between them.

Significance Level

A threshold in hypothesis testing that determines the probability of rejecting the null hypothesis when it is actually true, typically denoted by alpha.

Kruskal-Wallis Test

A nonparametric method for testing whether samples originate from the same distribution, often used when comparing three or more groups.