Research Catalog

Details

Additional authors

1. Cohen, Louis, 1928-

Description

1. 227 pages : illustrations; 25 cm

Subject

1. Biology > Fieldwork > Statistical methods
2. Ecology > Statistical methods
3. Statistics
4. Feldforschung
5. Statistik
6. Ökologie

Genre/Form

1. Statistics
2. Statistics.
3. Statistiques.

Contents

1. What do we mean by statistics? -- Why is statistics necessary? -- Statistics in field biology -- The limitations of statistics -- Measurement and Sampling Concepts -- Populations, samples and observations -- Counting things--the sampling unit -- Random sampling -- Random numbers -- Independence -- Statistics and parameters -- Descriptive and inferential statistics -- Parametric and non-parametric statistics -- Processing Data -- Scales of measurement -- The nominal scale -- The ordinal scale -- The interval scale -- The ratio scale -- Conversion of interval observations to an ordinal scale -- Derived variables -- The precision of observations -- How precise should we be? -- The frequency table -- Aggregating frequency classes -- Frequency distribution of count observations -- Dispersion -- Bivariate data -- Presenting Data -- Dot plot or line plot -- Bar graph -- Histogram -- Frequency polygon and frequency curve -- Scattergram (scatter plot) -- Circle or pie graph -- Measuring the Average -- What is an average? -- The mean -- The median--a resistant statistic -- The mode -- Relationship between the mean, median and mode -- Measuring Variability -- Variability -- The range -- The standard deviation -- Calculating the standard deviation -- Calculating the standard deviation from grouped data -- Variance -- An alternative formula for calculating the variance and standard deviation -- Obtaining the standard deviation, variance and the sum of squares from a calculator -- Degrees of freedom -- The coefficient of variation.

Owning institution

1. Princeton University Library

Bibliography (note)

1. Includes bibliographical references (p. 224) and index.