Random Sampling
Resources
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Simple random sampling applet:
Simple Random Sampling Applet
In a simple random sample, each individual in the population has an equal probability of being chosen. Additionally, each sample of size n has an equal probability of being the chosen sample.
This online tool allows users to enter the population size (N) and the sample size (n). After entering the two values and clicking the Enter key, the applet displays a set of indices giving a simple random sample dataset.
Author: © 2021 Matt Bognar, Department of Statistics and Actuarial Science, University of Iowa.
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Visualizing a simple random sample:
Simple Random Sample of Lotto Balls
This applet animates the random sampling of lotto balls. The population size can be set anywhere between 1 and 144. Users can select the population size, set the sample size n and click the "SAMPLE" button to take a sample. They can remove all balls by clicking the "RESET" button.
Author: Statistical Applets.
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Research randomizer:
Research Randomizer
This online tool allows users to generate a set of random numbers. Users can choose whether they wish to allow repetition or not.
Copyright © 1997-2022 by Geoffrey C. Urbaniak and Scott Plous.
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Simulating various experiments:
Randomization, Resampling and Simulation Webapp
This web app allows users to simulate data from various scenarios: binomial coin toss, card experiment, ball and urn experiment, etc.
Author: SOCR @ University of Michigan.