1 / 6

CIVL 181 Tutorial 2

CIVL 181 Tutorial 2. Total probability Bayes theorem. s.i. and m.e.: Contractors A and B bidding for jobs. (1) bidding for different jobs (2) bidding for same job. A. B. A. B. s.i. and m.e.: Contractors A and B bidding for jobs. E 1 and E 2 are s.i.

ena
Download Presentation

CIVL 181 Tutorial 2

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. CIVL 181 Tutorial 2 • Total probability • Bayes theorem

  2. s.i. and m.e.:Contractors A and B bidding for jobs (1) bidding for different jobs (2) bidding for same job A B A B

  3. s.i. and m.e.:Contractors A and B bidding for jobs • E1 and E2 are s.i. • Should E1 and E2 partly overlap in Venn? • Yes! Because occurrence of E1 should not prohibit E2 (and vice versa) P (E2 | E1) 0 = P(E2)

  4. Ture or false?

  5. Example Three bags of apples. Bag 1 has 10% bad apples, Bag 2 has 20% bad apples, bag 3 has 40% bad apples. i) Suppose you select one of three (at random), and pick an apple from the selected bag. The apple turned bad, what is the chance that it is from Bag 1, Bag 2, Bag3 ?(1/7,2/7,4/7) ii) Suppose an apple picked is good, what is the chance from Bag 1, Bag 2, Bag 3 ?(9/23,8/23,6/23)

  6. Example

More Related