No. Only a census can ACCURATELY predict the outcomes: a random sample cannot.
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The sample must be large and random.
Random variables is a function that can produce outcomes with different probability and random variates is the particular outcome of a random variable.
A random variable is a function that assigns unique numerical values to all possible outcomes of a random experiment. A real valued function defined on a sample space of an experiment is also called random variable.
Sample: The answer is called Sample space.
A random sample is a selection from the population of interest where each item (persons, households, widgets, etc.) has an equal chance of being selected. The idea being that measuring a random sample of sufficient size will accurately (within a margin of error) reflect the "true" value that exists in the population - while at the same time reducing your study to a manageable size. A random sample is integral in good survey design to reduce bias in your experiment.