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Related Concept Videos

What is a Frequency Distribution00:51

What is a Frequency Distribution

27.8K
A frequency is the number of times a value of the data occurs. The sum of all the frequency values represents the total number of students included in the sample. It is commonly used to group data of quantitative types. Frequency distributions can be displayed in a table, histogram, line graph, dot plot, or pie chart, just to name a few. A histogram is a graphical representation of tabulated frequencies, shown as adjacent rectangles, erected over discrete intervals (bins), with an area equal to...
27.8K
Mean From a Frequency Distribution01:11

Mean From a Frequency Distribution

23.1K
Sometimes, data gathered from an experiment on a large sample or population are organized into concise tables. In such cases, the frequency of the quantitative data set is plotted in the form of a table. Or else, the data values are grouped into the quantity’s intervals, which form classes, and their respective frequencies are known. That is, the data values are distributed over different categories or classes. This is known as frequency distribution.
When such a data set is encountered,...
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Construction of Frequency Distribution01:15

Construction of Frequency Distribution

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A frequency distribution table can be constructed using the steps given below.
First, make a table with two columns—one with the title of the data that needs to be organized, and the other column for frequency. [Draw a third column for tally marks if needed]. Then, take a look at the items given in the data set and decide if an ungrouped frequency distribution table or a grouped frequency distribution table would be more suitable. If there are large sets of different values, then it is...
12.9K
Percentage Frequency Distribution00:57

Percentage Frequency Distribution

63.9K
A percentage frequency distribution, in general, is a display of data that indicates the percentage of observations for each data point or grouping of data points. It is a commonly used method for expressing the relative frequency of survey responses and other data. The percentage frequency distributions are often displayed as bar graphs, pie charts, or tables.
The process of making a percentage frequency distribution involves the following few steps: note the total number of observations;...
63.9K
Relative Frequency Distribution00:55

Relative Frequency Distribution

13.8K
A relative frequency distribution is the proportion or fraction of times a value occurs in a data set. To find the relative frequencies, one can divide each frequency by the total number of data points in the sample. It is very similar to a regular frequency distribution, except that instead of reporting how many data values fall in a class, a relative frequency distribution reports the fraction of data values that fall in a class. These fractions or proportions are called relative frequencies...
13.8K
Cumulative Frequency Distribution01:04

Cumulative Frequency Distribution

8.7K
A cumulative frequency distribution is another type of frequency distribution. Instead of reporting how many data values fall in some classes, it reports how many data values are contained in either that class or any class to its left. Technically, it means the sum of frequencies of the class and all the classes below it in a frequency distribution. A cumulative frequency is calculated by adding the frequency of each class lower than the corresponding class interval or category. In general, a...
8.7K

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Related Experiment Video

Updated: Feb 13, 2026

Adhesion Frequency Assay for In Situ Kinetics Analysis of Cross-Junctional Molecular Interactions at the Cell-Cell Interface
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AFD: an application for bi-molecular interaction using axial frequency distribution.

Saad Raza1, Syed Sikander Azam2

  • 1Computational Biology Lab, National Center for Bioinformatics, Quaid-i-Azam University, Islamabad, Pakistan.

Journal of Molecular Modeling
|March 8, 2018
PubMed
Summary

Axial frequency distribution (AFD) offers a novel computational method to analyze biomolecular dynamics. This technique reveals local movements and binding patterns crucial for understanding biological pathways and drug interactions.

Keywords:
Axial frequency distributionBinding patternConformational analysisMolecular dynamics simulationRadial distribution functionSoftware

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Area of Science:

  • Computational chemistry
  • Structural biology
  • Biophysics

Background:

  • Biomolecular dynamics are key to biological pathway function.
  • Understanding molecular flexibility is crucial for drug discovery and disease research.
  • Existing methods may not fully capture localized molecular movements.

Purpose of the Study:

  • Introduce axial frequency distribution (AFD) as a novel computational method.
  • To analyze the dynamic nature and flexibility of biomolecules.
  • To provide detailed insights into ligand-protein interactions.

Main Methods:

  • Developed and implemented axial frequency distribution (AFD).
  • Applied AFD to biological models of ligand-protein interactions.
  • Analyzed atom distribution and density around specific molecular centers.

Main Results:

  • AFD effectively represents ligand atom distribution and density.
  • Identified local movements and rotations not captured by other parameters.
  • Visualized ligand binding patterns and interactions (e.g., hydrogen bonds, van der Waals).

Conclusions:

  • AFD provides a comprehensive view of ligand-protein binding.
  • The method elucidates molecular flexibility and stabilization.
  • AFD graphs offer gradient-based insights into biomolecular interactions.