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  • Probability is simply how likely something is to happen. Whenever we're unsure about the outcome of an event, we can talk about the probabilities of certain outcomes—how likely they are. The analysis of events governed by probability is called statistics.

    Probability - Wikipedia

    • Problem 1: There are 12 patients in a hospital ward. All of them are male. 8 patients have renal disease and 3 patients have liver disease. Among the 12 patients, 1 patient has both diseases. Find Probability of renal disease given that the patient also has liver disease.


      Problem 2: In a bag, there are 4 white balls, 7 green balls, and 12 yellow balls. If 4 balls are picked, what is the probability of picking yellow ball first, white ball second, green ball third, and again yellow ball for the fourth time?