A metropolitan school system consists of three...

This preview shows page 1 - 2 out of 2 pages.

14. A metropolitan school system consists of three districts—north, south, and central. The north district contains 25% of all students, the south district contains 40%, and the central district contains 35%. A minimum-competency test was given to all students; 10% of the north district students failed, 15% of the south district students failed, and 5% of the central district students failed. 1. Develop a probability tree showing all marginal, conditional, and joint probabilities. 2. Develop a joint probability table. 3. What is the probability that a student selected at random failed the test? 1.

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture