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

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### Contents

Review of Arithmetic and Algebra | 2 |

Frequency Distributions and Graphs | 22 |

Ch apter 3 Measures of Central Tendency | 34 |

8 other sections not shown

### Common terms and phrases

a z score ability algebra aptitude test arithmetic arithmetic mean auditory perception test average axis behavior boys called 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 flipped formula frequency distribution frequency polygon girls graph histogram hypothesis hypothetical distribution indicates individual learning mathematics mean score meas measure of central measure of variability measuring device median multiplication negative normal curve normal distribution Number of Heads obtained occur operations pair predictive validity predictor probability probability distribution psychological measuring radicand random sample range raw score relationship reliability coefficient represented result 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 true false values variance