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Advanced counting

Stars and bars, dictionary rank, multinomial coefficients and equations with combinations

The Advanced counting unit belongs to the Statistics and probability section of Math Mental and has 15 lessons: stars and bars, dictionary rank, multinomial coefficients and equations with combinations.

Practice this unit

Lessons in this unit

  1. Stars and bars Lesson, 8 questions
  2. Positive solutions Lesson, 8 questions
  3. Sum of the digits Lesson, 8 questions
  4. Three-digit numbers Lesson, 8 questions
  5. Dictionary rank Lesson, 8 questions
  6. Dictionary rank with repeated letters Lesson, 8 questions
  7. Practice: stars and dictionary Practice, 12 questions
  8. Trinomial coefficient Lesson, 8 questions
  9. Weighted binomial Lesson, 8 questions
  10. Multinomial with weights and signs Lesson, 8 questions
  11. Finding n in combinations Lesson, 8 questions
  12. Finding n in arrangements Lesson, 8 questions
  13. Complementary combinations Lesson, 8 questions
  14. Review: advanced counting Practice, 12 questions
  15. Unit test 15 questions

This unit in numbers

12 lessons, 2 practices, and 1 test, with 135 questions in total.

It starts with “Stars and bars” and ends with “Complementary combinations”.

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