CBSE · Class 11 · Mathematics · Chapter 14

Probability

Basic probability concepts.

8 lessons 100 min
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Lessons in this chapter

  1. 1Events as SetsTranslate a question about a random experiment into a precise set of outcomes.
  2. 2Combining and Classifying EventsUse set operations to describe combined conditions and distinguish overlap from complete coverage.
  3. 3Probability Axioms and Outcome WeightsBuild a valid probability model and find an event’s chance by adding the weights of its outcomes.
  4. 4Equally Likely OutcomesDerive the counting formula and use elementary outcomes to calculate probabilities accurately.
  5. 5Counting Arrangements and SelectionsChoose permutations or combinations to count larger sample spaces and their favourable outcomes.
  6. 6The Addition Rule for EventsCorrect for overlapping outcomes when calculating the probability that at least one event occurs.
  7. 7Complements and Multi-Step ProbabilityTranslate neither, at least one, and only one into events and combine the chapter’s methods.
  8. 8Chapter Summary and PracticeConnect event sets, probability models, counting, overlap, and complements in complete problem-solving arguments.
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