1 / 9

Probability Problems

Probability Problems. chapter 15 part 2 General addition rule Testing for independence Tree diagram. Police report that 78% of drivers stopped on suspicion of drunk driving are given a breath test, 36% a blood test, and 22% both.

ashtyn
Download Presentation

Probability Problems

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. Probability Problems chapter 15 part 2 General addition rule Testing for independence Tree diagram

  2. Police report that 78% of drivers stopped on suspicion of drunk driving are given a breath test, 36% a blood test, and 22% both. What is the probability that a randomly selected DWI suspect is given: (use a venn diagram for general addition rule) 1- a test? 2- a blood or breath test but not both? 3- neither? (use a table) 4- Are giving a blood and breath test mutually exclusive? 5- Are giving the two tests independent?

  3. Blood Test Breath Test Both tests 14% 22% 56% 8% No Test

  4. What is the probability that a randomly selected DWI suspect is given: 1- a test? 2- a blood or breath test but not both? 3- neither? Breath Test Blood Test 8% Both tests 14% 22% 56% No Test

  5. BREATH TEST BLOOD TEST Breath Test Blood Test 8% Both tests 14% 22% 56% No Test

  6. BREATH TEST BLOOD TEST What is the probability that a randomly selected DWI suspect is given: 4- Are giving a blood and breath test mutually exclusive (DISJOINT)? 5- Are giving the two tests independent?

  7. A TB test is 99% accurate. If the incidence of having TB in the US is 5 in 100,000 or 0.00005 and the probability of having a false negative test is 0.001. What is the probability of actually having TB if you test positive for it?

  8. -P (+ | TB) = 0.99 -P(TB in the US) = 0.00005 -P( - | TB) = 0.001 -What is the probability of actually having TB if you test positive for it?

More Related