Subjective Probability

Dictionary Says

Definition of 'Subjective Probability'

A probability derived from an individual's personal judgment about whether a specific outcome is likely to occur. Subjective probabilities contain no formal calculations and only reflect the subject's opinions and past experience.
Investopedia Says

Investopedia explains 'Subjective Probability'

Subjective probabilities differ from person to person. Because the probability is subjective, it contains a high degree of personal bias. An example of subjective probability could be asking New York Yankees fans, before the baseball season starts, the chances of New York winning the world series. While there is no absolute mathematical proof behind the answer to the example, fans might still reply in actual percentage terms, such as the Yankees having a 25% chance of winning the world series.

Related Definitions

  • Probability Distribution

    A statistical function that describes all the possible values and likelihoods that a random variable can take within a given range. This range will be between the minimum and maximum ...
    Read More »
  • Default Probability

    The degree of likelihood that the borrower of a loan or debt will not be able to make the necessary scheduled repayments. Should the borrower be unable to pay, they are then said to be ...
    Read More »
  • A Priori Probability

    Probability calculated by logically examining existing information. A priori probability can most easily be described as making a conclusion based upon deductive reasoning rather than ...
    Read More »
    • Risk

      The chance that an investment's actual return will be different than expected. Risk includes the possibility of losing some or all of the original investment. Different versions of risk ...
      Read More »
    • Value at Risk - VaR

      A technique used to estimate the probability of portfolio losses based on the statistical analysis of historical price trends and volatilities.
      Read More »
    • Volatility

      1. A statistical measure of the dispersion of returns for a given security or market index. Volatility can either be measured by using the standard deviation or variance between returns ...
      Read More »
    • Conditional Probability

      Probability of an event or outcome based on the occurrence of a previous event or outcome. Conditional probability is calculated by multiplying the probability of the preceding event by ...
      Read More »
    • Objective Probability

      The probability that an event will occur based an analysis in which each measure is based on a recorded observation, rather than a subjective estimate. Objective probabilities are a more ...
      Read More »

Articles Of Interest

Partner Links