Solve the Equation $- z ^ { 4 } + 13 z ^ { 2 } - 36 = 0$

question 216

Essay

Solve the equation. $- z ^ { 4 } + 13 z ^ { 2 } - 36 = 0$ , z = __________ If there is more than one solution, separate your answers with commas.

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Definitions:

Shape

A term in statistics and mathematics describing the geometric or visual characteristics of a dataset or distribution, such as symmetry or skewness.

Stem-and-Leaf Display

A graphical method used to display quantitative data where each number is split into a stem (the leading digits) and a leaf (the last digit).

Simpson's Paradox

A phenomenon in statistics where a trend appears in several different groups of data but disappears or reverses when these groups are combined.

Aggregated Crosstabulation

A statistical method used to analyze and summarize data between two or more categorical variables in a table format.