A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

The probability that a given urine sample analyzed in a pathology lab contains protein is 0.73 (event A). The probability that the urine sample contains the protein albumin is 0.58 (event B). The probability that a sample contains protein, given that albumin is detected, is 1. Which statement is true?

  • This Question is Closed
  1. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Events A and B are dependent because P(A|B) = P(A). Events A and B are dependent because P(A| B) P(B). Events A and B are dependent because P(A|B) = P(A) + P(B). Events A and B are dependent because P(A| B) P(A). Events A and B are dependent because P(A|B) = P(A).

  2. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @linn99123 @mathmate please help

  3. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @cool4u2001 @jessie13 @Crazy_questions

  4. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @dan815

  5. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @DanJS

  6. mathmate
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @Kitty449 These are "definition" type of questions which verifies the understanding of given terms, such as "conditional probability" and "dependence" in this case. The first step in solving this type of problems is to find out the meaning of each term. For example, P(A) represents the probability of event A occurring, and similarly, P(B) represents the probability of event B occurring, and similarly, P(A|B) represents the probability of event A happening given that B has already occurred. (you should reread the question to find out what the value of P(A|B) is, for this problem. It reads "Probability of A given B". Then you need to know what constitutes dependence. If you google for the term (in statistics), you will find the following or similar definitions: (from thefreedictionary.com) statistical dependence 1. (Statistics) a condition in which two random variables are not independent. X and Y are positively dependent if the conditional probability, P(X|Y), of X given Y is greater than the probability, P(X), of X, or equivalently if P(X&Y) >P(X).P(Y). They are negatively dependent if the inequalities are reversed. In other words, if P(X|Y)\(\ne\)P(X), then X and Y are dependent. In fact, the definition of statistical independence between X and Y if and only if P(X|Y)=P(X), which says the same thing. So look at the values of P(A), P(B), and P(A|B), then you can decide why A and B are dependent (or not). Btw, your 5 choices are incomplete, but we don't need it more than you do. It is a normal courtesy to proof-read your post and correct as required before your helpers work on it.

  7. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.