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This quiz consists of 5 multiple choice and 5 short answer questions through chapters 7-8.

## Multiple Choice Questions

**1. In statistics, what refers to any statistical relationship between two random variables or two sets of data?**
**(a)** Commonality. **(b)** Diversity. **(c)** Prediction. **(d)** Dependence.

**2. What mathematical term refers to a bifurcation in which the system switches to a new behavior with twice the period of the original system in a discrete dynamical system?**
**(a)** Dynamic equilibrium. **(b)** The Navier-Stokes equation. **(c)** Period doubling bifurcation. **(d)** Software visualization.

**3. When was Steven Smale born?**
**(a)** 1930. **(b)** 1943. **(c)** 1938. **(d)** 1932.

**4. What can be formed by taking a finite Cartesian product of the Cantor set with itself, making it a Cantor space?**
**(a)** Cantor dust. **(b)** Fractal. **(c)** Helium in a Box. **(d)** Euclidean space.

**5. What is defined as a mess of disorder on all scales and is not stable?**
**(a)** Energy. **(b)** Turbulence. **(c)** Viscosity. **(d)** Fractal.

## Short Answer Questions

**1.** Who is attributed with the following quote from Chapter 8, "Images of Chaos": "What else, when chaos draws all forced inward to shape a single leaf"?

**2.** What is a concept in mathematics where a fixed rule describes the time dependence of a point in a geometrical space?

**3.** In Chapter 1, "The Butterfly Effect," the author writes, "The Butterfly Effect acquired a technical name: sensitive dependence on _____________"?

**4.** What were the subjects allowed to glance at one at a time in the experiment from the 1940s described by Gleick in Chapter 2, "Revolution"?

**5.** In control theory, a system is _____ if any of the roots of its characteristic equation has real part greater than zero.

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