Prentice Hall Algebra 2

11 Chapter Review

Connecting BIG ideas and Answering the Essential Questions

1 Probability
A combination is a collection.
A permutation is an ordered collection.
Permutations and Combinations (Lesson 11-1)
For n items chosen r at a time, 0 less than or equal to r less than or equal to n comma
  • sub n , cap p sub r , equals . fraction n factorial , over open n minus r close factorial end fraction
  • sub n , cap c sub r , equals . fraction n factorial , over open n minus r close factorial end fraction
Probability of Multiple Events and Conditional Probability (Lessons 11-3 and 11-4)
If A and B are independent events,
  • p open eh , and b close equals p open eh close middle dot p open b close
  • P(A or B) = P(A) + P(B)

The probability of event B, given event A is p open b vertical line eh close equals . fraction p open eh , and b close , over p open eh close end fraction . .
2 Probability
You base experimental probability on past—and theoretical probability on possible—occurrences.
Probability (Lesson 11-2)
Experimental probability:
p open , event , close equals . fraction numberoftimestheeventoccurs , over numberoftrials end fraction
Theoretical probability:
For n equally likely outcomes, if event A occurs in m of these outcomes, then p open cap a close equals , m over n . .
3 Data Collection and Analysis
Standard deviation describes how data spread out from a particular middle (central tendency) value.
Analyzing Data and Standard Deviation (Lessons 11-5 and 11-6)
  • x bar , comma , themean , comma equals , fraction sum x , over n end fraction
  • sigma comma . standarddeviation . equals . square root of fraction sum . open x minus , x bar . close squared , over n end fraction end root
Binomial Distributions and Normal Distributions (Lessons 11-8 and 11-9)
In a normal distribution, about 68% (95%) of data are within one (two) standard deviation(s) of the mean.

Chapter Vocabulary

Fill in the blanks.

  1. A(n) ? is part of a population.
  2. A(n) ? has a value substantially different from other data in the set.
  3. A function that gives the probability of each event in a sample space is a(n) ?.
  4. The ? is the simplest measure of variation.

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Table of Contents

Prentice Hall Algebra 2 Chapter 1 Expressions, Equations, and Inequalities Chapter 2 Functions, Equations, and Graphs Chapter 3 Linear Systems Chapter 4 Quadratic Functions and Equations Chapter 5 Polynomials and Polynomial Functions Chapter 6 Radical Functions and Rational Exponents Chapter 7 Exponential and Logarithmic Functions Chapter 8 Rational Functions Chapter 9 Sequences and Series Chapter 10 Quadratic Relations and Conic Sections Chapter 11 Probability and Statistics Chapter 12 Matrices Chapter 13 Periodic Functions and Trigonometry Chapter 14 Trigonometric Identities and Equations Skills Handbook English/Spanish Illustrated Glossary Selected Answers Index Acknowledgments