4.1 - 4.2: Discrete probability distributions & 4.3: Binomial distributions Flashcards
1
Q
Two characteristics of discrete probability distribution functions
A
Probability of each event is between 0 and 1
The sum of the probabilities is 1
2
Q
Formula for mean (avg) of a probability distribution
A
Σ x * P(x)
3
Q
Expected value
A
mean (avg of the value observed in a long run)
most often used for gambling/casino games
4
Q
binompdf(n,p,X)
A
n = # of trials
p = probability of success in one trial
X = # of successes
5
Q
Probability of at least 1
P(≥1)
A
= 1- P(none)
6
Q
Probability of at most 1
P(≤1)
A
P(0) + P(1)
7
Q
A
