## Basic Concepts in Statistics' 2007 Ed. |

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### Contents

LESSON Normal Distribution | 5 |

Data Collection | 23 |

Presentation of Data | 37 |

Measures of Central Tendency | 61 |

Measures of Dispersion or Variability | 88 |

Counting Methods and Random Experiment | 101 |

LawsOperations on Probability | 121 |

Estimation | 157 |

Introduction to Analysis of Variance | 185 |

Introduction to Regression and Correlation | 199 |

Analysis of Contingency Data | 213 |

Appendices | 254 |

Percentiles of the tDistribution | 261 |

Appendix E Critical Values of the ChiSquared Distribution | 275 |

### Common terms and phrases

accrued analysis applied arranged average called cards central characteristics chi-square class interval coefficient collection College column computed Conclusion confidence correlation critical curve Decision dependent determine developed digit divide equal error estimate event example experiment Figure Find Fiqune formed formula four-digit frequency distribution given greater Hence hypothesis important independent indicate individuals interval less level of significance limit lower mathematics mean measure median methods midrange mode Name normal objects observations obtained ordered points population positive possible presented probability problem professor proportion random sample range rank region regression relationship represent respectively responses Rule scores seated selected simple skewed Solution space Squares standard deviation statistics Step subjects survey taken Test Statistic theory third quartile total number units variable variance variation zero