Class 12 Maths · Chapter 13 · CBSE / NCERT

Probability

Chance when you already know something. You’ll learn conditional probability, the multiplication rule, independent events, total probability, Bayes’ theorem and random variables.

14 short lessons · about 62 minutes in all

What you’ll learn

  1. 1Chance when you know something more4 min
  2. 2The formula for 'chance of E given F'4 min
  3. 3The usual rules still work after 'given'4 min
  4. 4'Given' when outcomes are not equally likely5 min
  5. 5The chance of two things in a row4 min
  6. 6Three things in a row4 min
  7. 7Independent events: when knowing one changes nothing5 min
  8. 8Independent is not the same as mutually exclusive5 min
  9. 9'At least one' and 'neither'5 min
  10. 10Splitting all the outcomes into pieces4 min
  11. 11Adding up the chance over every route5 min
  12. 12Bayes: which bag did it come from?5 min
  13. 13Bayes in real life: tests and false alarms5 min
  14. 14A random variable: a number for every outcome3 min

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Chance when you know something more · about 4 minutes

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