The topic Finding probability used to appear under the Precalculus Math Mission, but was apparently removed. This exercise calculates some probability based on information given in the problem.

Types of Problems

There are two types of problems in this exercise:

  1. Find expected value: This problem gives the probability of an event and the number of times an experiment is ran. It asks the student to use probability theory to predict the number of times the event will occur in the number of trials.

    Find expected value

  2. Estimate the probability: This problem provides some experimental data. The student is asked to use that data to estimate the probability of a particular event.

    Estimate the probability


Knowledge of probability would be preferred but unnecessary. This exercise involves part of whole knowledge.

  1. Every probability will always be between 0 and 1.
  2. Empirical probabilities are based on experimental or collected data.
  3. The empirical probability that an event occurs is the number of successes out of the number of trials.
  4. The expected number of occurrences would be the probability of an event multiplied by the number of trials.

Real-life Applications

  1. Probability, along with decimals, percents, and fractions are used to determine the probability of a basketball player making a shot.
  2. Data and statistics appear in news reports and in the media every day.
  3. Many of the problems in this exercise could be viewed as real-life applications.
  4. Statistics can be seen more frequently than calculus in every day life.

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