## Biostatistics: some basic concepts |

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### Contents

DESCRIPTIVE AND INFERENTIAL STATISTICS | 7 |

DESCRIBING NOMINAL AND ORDINAL DATA | 15 |

NORMAL DISTRIBUTIONS | 43 |

Copyright | |

16 other sections not shown

### Common terms and phrases

a p value a z score analysis of variance Apgar scores beta error birth weight blood cultures calculate central tendency chance chapter chi-square test concept confidence interval continuous data conventional therapy degrees of freedom dependent variable descriptive statistics dispersion Diuretic example frequency distribution geometric mean given graph head circumference infants inferential statistics look matched controls matched or unmatched matched samples MEASURES OF CENTRAL median nominal data normal curve normal distribution null hypothesis number of observations one-way ANOVA ordinal data outcome pair-wise comparison tests pairs patients percentage percentile population mean predictive value probability random sample range Rank Sum Test raw score RECAP regression analysis relative risk repeated measures represent respiratory disease risk factor rvalue sampling variation set of data sign test SIGNED RANK TEST small sample specific square standard deviation statistically significant test statistic tests of significance Type II errors