U6 Probability Distributions Flashcards
1
Q
probability distribution
A
a function that gives the probability of each possible value of a random variable
2
Q
random varuake
A
variable that can have various values within a range
3
Q
discrete variable
A
can have only specific values within a range (usually whole #s)
4
Q
continuous variables
A
Can have infinite number of possible values in an interval
5
Q
expected value
A
the predicted average of all possible outcomes
6
Q
binomial distributions are…
A
- independent
- have 2 outcomes
- probability is the same
7
Q
geometric distributions is…
what do the questions look like?
A
- independent
- have 2 outcomes
- probability is the same
- number of failures before a success?
8
Q
hypergeometric
A
- dependent
- 2 outcomes
- probability changes
