Find the Eccentricity and Identify the Conic Given By $r = \frac { 2 } { 1 - \cos \theta }$

question 37

Essay

Find the eccentricity and identify the conic given by $r = \frac { 2 } { 1 - \cos \theta }$
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Definitions:

Confound Group

A group in an experiment that introduces variability to the outcome, making it difficult to determine the effect of the treatment.

Experimental Group

In an experiment, one or more treatment groups of participants that receive the manipulation of the independent variable being investigated.

Random Assignment

Placing research participants into the conditions of an experiment in such a way that each participant has an equal chance of being assigned to any level of the independent variable.

Random Sampling

A method of sampling in which each member of a population has an equal chance of being selected to represent the whole.