Stats Methods 2

Card Set Information

Author:
QweenT
ID:
266052
Filename:
Stats Methods 2
Updated:
2014-03-13 11:50:57
Tags:
ffff
Folders:
fffff
Description:
ffff
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user QweenT on FreezingBlue Flashcards. What would you like to do?


  1. The Odds Ratio
    The odds ratio is the ratio of the odds of an event occurring in one group to the odds of it occurring in another group.
  2. Relative Risk
    The ratio of the probability of a given event occurring in one group to the probability of the same event in the other group.

    p(A)1/p(A)2
  3. Odds
    The odds of a n event is the ratio of probabilty that the event occurs to the probabilty that it does not occur. 

    P(A) = ODa/1+ODa
  4. Bayes Theorem
    Bayes Theorem is based on individual belief to capture probability and to revise it as new information arrives.

    Posterior = (Prior)(Likelihood)/Marginal

    • Prior - Before sample information is collected
    • Posterior - A prior after sample information is collected and analyzed.
    • Likelihood- Probability of sample information given the state of nature will take place.
    • Marginal - Probability of observing data whether the state of nature is true or false.
  5. Bernolli Distribution

    What are some of the Characteristics?

    What is the PD, MGF, Mean and Variance?
    • Characteristics
    • i.  One trial
    • ii. Trial has 2 outcomes

    • PD
    • px(1-p)1-x

    • MGF
    • pet(1-p)

    • MEAN
    • p

    • Variance
    • p(1-p)
  6. Geometric Distribution


    What are some of the Characteristics?

    What is the PD, MGF, Mean and Variance?
  7. Binomial Distribution


    What are some of the Characteristics?

    What is the PD, MGF, Mean and Variance?
    • Characteristics
    • i. n identical trials
    • ii. 2 possible outcomes
    • iii. Trials are independent

    • PD
    • (n

    • MGF
    • [1+p(et-1)]n

    • Mean
    • np

    • Variance
    • np(1-p)

What would you like to do?

Home > Flashcards > Print Preview