Flashcards
Stats 151 - Probability rules and the counting rule
Flashcards do conjunto (9)
- 1What is probability?a number associate with a random event
- 2How do you calculate AUB if the sets of data are overlapping?P(A) + P(B) - P(AUB)
- 3How do you calculate ANB?P(A) * P(B) = P(A) * P(B|A)
- 4The mean and standard deviation of Z are always the same. What are they?the mean is always 0 and the standard deviation is always 1
- 5how do you calculate P(A|B)?number of outcomes in ANB divided by the number of outcomes in B = P(B)*P(A|B)
- 6kidney stones either large or small. large ones are harder to treat if 562 out of 700 treatments are successful what is the estimated success rate?562/700*100% = 80%
- 7what is the success rate of small stones if there are 315 small successes?P(S|small size) = 315/357(total small)*100% = 88%
- 8three runners are competing for first place. how many ways can u win first? second? this is the counting rulefirst = 3 ways second = 2 ways 3*2 = 6 posibilities
- 9what are the other two ways to calculate the counting rule?permutation = N!/(N-n)!
combination = N!/n!(N-n)!
Informações
- Descrição
- Chemistry 101 Stats 151 FlashCards sobre Stats 151 - Probability rules and the counting rule, criado por jennabarnes12387 em 28-01-2014.
- Criado por
- jennabarnes12387 · jan 2014
- Atualizado
- 19 fev 2016
- Visualizações
- 25
- Tags
- Avaliação