Using probability concepts, it is found that the probability is subjective.
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A classical probability is given by <u>the number of desired outcomes divided by the number of total outcomes</u>, considering no prior results of the experiments.
An empirical probability is similar to the classical, considering prior results of experiments.
The subjective probability involves personal beliefs along the calculations.
In this problem:
There are 900 3-digit number, thus, the classical probability of winning is:
The given probability is not the classical, and also does not involve previous trials, so it is subjective.
Rational. Not whole or integer because its an exact measurement and not irrational because it CAN be expressed as a ratio (fraction, decimal measurement ) <span />