## Basic Statistical Concepts, a Self-instructional Text |

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### Contents

Review of Arithmetic and Algebra | 4 |

Frequency Distributions and Graphs | 22 |

Measures of Varibility | 46 |

Copyright | |

6 other sections not shown

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### Common terms and phrases

a z score ability algebra aptitude test arithmetic arithmetic mean auditory perception test average behavior boys cent centile rank central tendency cluster coefficient of correlation compared correlation coefficient criterion describe descriptive statistics determine deviation scores distribution curve equal estimate example experiment experimental conditions expression extraneous factors finding the mean finger maze formula frequency distribution frequency polygon girls graph histogram hypothesis hypothetical distribution indicates individual individual’s learning mathematics mean score meas measure of central measure of variability measuring device median metic milliseconds multiplication negative normal curve normal distribution Number of Heads obtained occur operations pair predictive validity predictor probability psychological measuring radicand random sample range raw score relationship reliability coefficient represented result right turns scatter diagram score on test skewed standard deviation standard score statistical stratified sampling subgroups subtraction Suppose symbol Table tails tally marks test scores tion toss trials variance