Flashcards
The Probability Distribution of a Discrete Random Variable
Flashcards do conjunto (7)
- 1What is uniform distribution?Where each probability was the same
- 2Example of uniform distribution on a table:
- 3What is the formula for expectation?E[x] = Σx P(x=x)
- 4Equation for following questions:
- 5Check the validity of this equationΣp = 1
P(R=1) + P(R=2) + P(R=3) + P(R=4) + P(R=5)
= 0.5 + 0.24 + 0.144 + 0.0864 + 0.0296 (subbed in r values for 2,3,4)
= 1 and therefore valid distribution - 6Find the values of: P(R=2) P(R≤3) P(R>4) P(R>5)P(R=2) : 0.24 (previously worked out)
P(R≤3) : 0.5 + 0.24 + 0.144 = 0.884
P(R>4) : 0.0296
P(R>5) : 0 (as distribution "0 otherwise" ) - 7Diagram showing Distribution vs Cumulative Distribution :
Informações
- Descrição
- The Probability Distribution of a Discrete Random Variable
- Criado por
- Doc Boff · mar 2019
- Atualizado
- 1 mar 2019
- Visualizações
- 5
- Avaliação