Flashcards
Stats 151 - Probability rules and the counting rule
Cards in this deck (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)!
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- Chemistry 101 Stats 151 Flashcards on Stats 151 - Probability rules and the counting rule, created by jennabarnes12387 on 28/01/2014.
- Created by
- jennabarnes12387 · Jan 2014
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- Feb 19, 2016
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