Chapter 3- Probability Flashcards
1
Q
Sample space
A
The set of all possible outcomes
2
Q
Event
A
Any set of outcomes of interest
3
Q
Probability
A
The probability of an event is the relative frequency of this set of outcomes over an indefinitely large number of trials. In real life, probabilities just have to be obtained from large samples
4
Q
Complement
A
The probability that an event will not occur
5
Q
Positive predictive value
A
The probability that a person has a disease, given that the test is positive
6
Q
Negative predictive value
A
The probability that a person does not have a disease given that the test is negative
7
Q
Sensitivity
A
The probability that the symptom is present given that the person has a disease
8
Q
Specificity
A
The probability that the symptom is not present given that the person does not have a disease
