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# Solutions for Chapter 9-7: Functions of a Random Variable ## Full solutions for Precalculus with Trigonometry: Concepts and Applications | 1st Edition

ISBN: 9781559533911 Solutions for Chapter 9-7: Functions of a Random Variable

Solutions for Chapter 9-7
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##### ISBN: 9781559533911

Precalculus with Trigonometry: Concepts and Applications was written by and is associated to the ISBN: 9781559533911. Chapter 9-7: Functions of a Random Variable includes 14 full step-by-step solutions. This textbook survival guide was created for the textbook: Precalculus with Trigonometry: Concepts and Applications, edition: 1. Since 14 problems in chapter 9-7: Functions of a Random Variable have been answered, more than 18871 students have viewed full step-by-step solutions from this chapter. This expansive textbook survival guide covers the following chapters and their solutions.

Key Calculus Terms and definitions covered in this textbook
• Annuity

A sequence of equal periodic payments.

• Boxplot (or box-and-whisker plot)

A graph that displays a five-number summary

• Coefficient

The real number multiplied by the variable(s) in a polynomial term

• Composition of functions

(f ? g) (x) = f (g(x))

• Ellipsoid of revolution

A surface generated by rotating an ellipse about its major axis

• Empty set

A set with no elements

• Linear programming problem

A method of solving certain problems involving maximizing or minimizing a function of two variables (called an objective function) subject to restrictions (called constraints)

• Octants

The eight regions of space determined by the coordinate planes.

• Ordered pair

A pair of real numbers (x, y), p. 12.

• Parallel lines

Two lines that are both vertical or have equal slopes.

• Polar coordinate system

A coordinate system whose ordered pair is based on the directed distance from a central point (the pole) and the angle measured from a ray from the pole (the polar axis)

• Polar distance formula

The distance between the points with polar coordinates (r1, ?1 ) and (r2, ?2 ) = 2r 12 + r 22 - 2r1r2 cos 1?1 - ?22

• Probability simulation

A numerical simulation of a probability experiment in which assigned numbers appear with the same probabilities as the outcomes of the experiment.

• Reference triangle

For an angle ? in standard position, a reference triangle is a triangle formed by the terminal side of angle ?, the x-axis, and a perpendicular dropped from a point on the terminal side to the x-axis. The angle in a reference triangle at the origin is the reference angle

• Resistant measure

A statistical measure that does not change much in response to outliers.

• Richter scale

A logarithmic scale used in measuring the intensity of an earthquake.

• Riemann sum

A sum where the interval is divided into n subintervals of equal length and is in the ith subinterval.

• Second-degree equation in two variables

Ax 2 + Bxy + Cy2 + Dx + Ey + F = 0, where A, B, and C are not all zero.

• Sum of a finite geometric series

Sn = a111 - r n 2 1 - r

• Ymin

The y-value of the bottom of the viewing window.

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