Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
11 Cards in this Set
- Front
- Back
|
Statistically significant
|
unlikly to have occured by chance
|
|
|
Qualifying Statistical significance
|
0.05 (1-20) sig at the 0.05 level
0.01 (1-100) sig at the 0.01 level |
|
|
outcomes
|
most basic results of observations or experiments
|
|
|
Events
|
Collection if one or more outcomes that share a property of interests
|
|
|
expressing probabilty
|
p event = 0 and 1
probability of 0 means that the event is impossiable Probability of 1 means that the event is certain |
|
|
Theoretical methods:
|
P(a)= number of ways A can occur
-------------------------- total number of outcomes |
|
|
Relative freq method
|
P(A)= number of times A occured
----------------------- total number of observations |
|
|
Probability of the complement of an event
|
P(A)= 1- P(A)
|
|
|
Law of Large Numbers
|
Repeated through many trials, proportion of the trails in which event A ocurs will be close to the probabitity P(A)
|
|
|
Expected Values
|
Expected Values = (valueof event1) x (prob of event 1) + (value of event 2)X(prob of event 2)
|
|
|
Probability for independent events
|
P(A and B)= P(A) X P(B)
|
