random samples
Unplanned data picks
Random samples are selections from a larger group where each member has an equal chance of being chosen.
The technique is fundamental to statistics and research—conclusions about a population can be drawn from a properly randomized subset without studying everyone.
The poll used random samples of likely voters.
To take a random sample is to select this way.
- statisticsCollected numerical information
- probabilityQuantified chance of occurrence
- estimationApproximate value judgment
- populationAll inhabitants combined
- margin of errorAllowable deviation from truth
cross sections · representativeness · polling data · analysis · collection · variability · coin flip · data · bell curve · inference · clinical trials · blind study · standard deviation · quality control · variance · law of averages · lottery · lucky dip
- randomnesscoin flips, dice rolls, unpredictability, lottery numbers, entropy
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