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poisson-distribution

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Journal Articles
The American Biology Teacher. 2017; 79110–13 doi: https://doi.org/10.1525/abt.2017.79.1.10
Published: 01 January 2017
...Robert T. Grammer The Poisson distribution played a key role in experiments that had a historic role in the development of molecular biology. In particular, the interpretation and design of experiments elucidating the actions of bacteriophages and their host bacteria during the infection process...
Journal Articles
The American Biology Teacher. 2019; 81127–31 doi: https://doi.org/10.1525/abt.2019.81.1.27
Published: 01 January 2019
... pattern by comparing the histogram they generate to that of a Poisson distribution. Data can be analyzed in a simple fashion or via advanced mixed models. Figure 1. Left to right: uniform (even), clumped (patchy), and random dispersion patterns. Figure 1. Left to right: uniform (even), clumped...
Journal Articles
The American Biology Teacher. 2019; 819680–685 doi: https://doi.org/10.1525/abt.2019.81.9.680
Published: 01 December 2019
...............................8.582-TT Planting experiment............................4.250-I Poisson distribution............................1.27-I Polarized light............................9.645-I Polymerase chain reaction (PCR)............................3.162-I, 7.492-I Population............................5.366...
Journal Articles
The American Biology Teacher. 2017; 799787–791 doi: https://doi.org/10.1525/abt.2017.79.9.787
Published: 01 November 2017
... the Think-Pair-Share Active-Learning Technique............................1:3-F The Poisson Distribution in Biology Instruction............................1:10-F Advising Biology Majors about Career Choices: Resources & Information for Biology Instructors............................1:14-F...
Journal Articles
The American Biology Teacher. 2017; 798621–625 doi: https://doi.org/10.1525/abt.2017.79.8.621
Published: 01 October 2017
... categories: PowerPoint lecture, activity, research examples, videos, or both activity and lecture. I tested for differences in preferred components between classes using a generalized linear model (GLiM with Poisson distribution and Log link function) with the number of responses as the response variable...
Journal Articles
The American Biology Teacher. 2015; 774289–293 doi: https://doi.org/10.1525/abt.2015.77.4.9
Published: 01 April 2015
... such as calculating the variance-to-mean ratio or comparing observed frequency distributions to Poisson distributions ( Cox, 2002 ). These data are typically provided or recorded in the field as tabular frequency data; thus, they are not spatially explicit. Ironically, with the exception of brief...
Journal Articles
The American Biology Teacher. 2011; 734213–216 doi: https://doi.org/10.1525/abt.2011.73.4.5
Published: 01 April 2011
... overwhelming in regard to mammalian, including human, sex ratio at birth. Because a mixture of Lexis and Poisson variation may mimic a binomial distribution ( James 2000 ), it is invalid to infer from a seemingly binomial distribution that the probability of a male birth is equal at all trials. "In particular...
Journal Articles
The American Biology Teacher. 2008; 709550–553 doi: https://doi.org/10.2307/27669341
Published: 01 November 2008
... ground, and all plants in that frame are counted. In this exercise we will use "natural" SUs. The Poisson Probability Distribution If organisms are distributed at random, then each SU has an equal probability of containing an individual, independent of the number of individuals it already contains. This...
Journal Articles
The American Biology Teacher. 2007; 692106–108 doi: https://doi.org/10.2307/4452106
Published: 01 February 2007
.... This data set can then be analyzed statistically by calculating the average as well as variance and then tested to see if they fit a particular expected dis- tribution, in this case the Poisson distribution. The exercise can be done in middle school classes by students making their own slides and...
Journal Articles
The American Biology Teacher. 1975; 373180–181 doi: https://doi.org/10.2307/4445140
Published: 01 March 1975
... would happen in the case of the spread of an epidemic). Three mathematical formulas describe each of these types of dispersion respectively: the Poisson distribution, the positive binomial distribution, and the negative binomial distribution. Elliott (1973) gives a rather extensive discussion of each of...
Journal Articles
The American Biology Teacher. 1975; 373179–180 doi: https://doi.org/10.2307/4445139
Published: 01 March 1975
... species each 31 squares contained 6 different species each 20 squares contained 7 different species each 6 squares contained 8 different species each To determine if the number of species in our sample data was randomly distributed throughout the 100 squares, we used the Poisson distribution. We checked...
Journal Articles
The American Biology Teacher. 1975; 376383 doi: https://doi.org/10.2307/4445309
Published: 01 September 1975
... text, Parker manages to convey the essen- tials of a large part of modern statisti- cal techniques. Naturally, within this narrow compass, some topics must be omitted or treated very lightly. This is true here of experimental design, group- ing, exact Poisson distribution, and-with the exception of...
Journal Articles
The American Biology Teacher. 1975; 376383 doi: https://doi.org/10.2307/4445308
Published: 01 September 1975
... the essen- tials of a large part of modern statisti- cal techniques. Naturally, within this narrow compass, some topics must be omitted or treated very lightly. This is true here of experimental design, group- ing, exact Poisson distribution, and-with the exception of rank cor- relation-the entire...
Journal Articles
The American Biology Teacher. 1975; 376383–384 doi: https://doi.org/10.2307/4445310
Published: 01 September 1975
... the essen- tials of a large part of modern statisti- cal techniques. Naturally, within this narrow compass, some topics must be omitted or treated very lightly. This is true here of experimental design, group- ing, exact Poisson distribution, and-with the exception of rank cor- relation-the entire...
Journal Articles
The American Biology Teacher. 1970; 327435 doi: https://doi.org/10.2307/4443174
Published: 01 October 1970
... beyond the average high school student and possibly beyond the average high school teacher. Differential equations and terms such as "random niche boun- dary," "hyperspace," "niche hypervol- ume," "lognormal distributions," and "]Poisson distributions" are used as ex- planations of ecologic relationships...
Journal Articles
The American Biology Teacher. 1970; 327435 doi: https://doi.org/10.2307/4443175
Published: 01 October 1970
... average high school teacher. Differential equations and terms such as "random niche boun- dary," "hyperspace," "niche hypervol- ume," "lognormal distributions," and "]Poisson distributions" are used as ex- planations of ecologic relationships in a manner that assumes the reader's fa- miliarity with the...
Journal Articles
The American Biology Teacher. 1970; 327435 doi: https://doi.org/10.2307/4443176
Published: 01 October 1970
... beyond the average high school teacher. Differential equations and terms such as "random niche boun- dary," "hyperspace," "niche hypervol- ume," "lognormal distributions," and "]Poisson distributions" are used as ex- planations of ecologic relationships in a manner that assumes the reader's fa- miliarity...
Journal Articles
The American Biology Teacher. 1970; 327435 doi: https://doi.org/10.2307/4443173
Published: 01 October 1970
... beyond the average high school teacher. Differential equations and terms such as "random niche boun- dary," "hyperspace," "niche hypervol- ume," "lognormal distributions," and "]Poisson distributions" are used as ex- planations of ecologic relationships in a manner that assumes the reader's fa- miliarity...
Journal Articles
The American Biology Teacher. 1970; 325310 doi: https://doi.org/10.2307/4443081
Published: 01 May 1970
... chapter. The book can be used by persons who lack a background in the mathematics of probability. The appen- dix supplies a convenient review of Poisson distribution. The text also has the advantage of being designed for self-study: each chapter includes review problems to test comprehension, and the...
Journal Articles
The American Biology Teacher. 1970; 325310 doi: https://doi.org/10.2307/4443079
Published: 01 May 1970
... chapter. The book can be used by persons who lack a background in the mathematics of probability. The appen- dix supplies a convenient review of Poisson distribution. The text also has the advantage of being designed for self-study: each chapter includes review problems to test comprehension, and the...