The probability of each of three independent events is shown in the table below. What is the probability of A and C occurring, but not B（）
A: 15%
B: 42%
C: 8.9%.
A: 15%
B: 42%
C: 8.9%.
举一反三
- After preparing the probability distribution of cost outcome for a project, the estimate, with a 15% probability of being exceeded, is approximately one standard deviation （）. A: below the mean B: above the median C: above the mean D: above the median
- After preparing the probability distribution of cost outcome for a project, the estimate, with a 15% probability of being exceeded, is approximately one standard deviation ______ . A: A) below the mean B: B) above the median C: C) above the mean D: D) above the median
- Two events are mutually exclusive if( ) A: the<br/>probability of their intersection is 1. B: they have no sample points in common. C: the<br/>probability of their intersection is 0.5. D: the<br/>probability of their union is 1 and they have no sample points in<br/>common.
- Referring to Table 6-2, for a given month, what is the probability that John's income as a waiter is between $700 and $1,600
- Referring to Table 6-2, for a given month, what is the probability that John's income as a waiter is between $1,200 and $1,600