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Math·Problem-Solving and Data Analysis·Probability and conditional probability
easy| Live north of Center St. | Live south of Center St. | Total | |
|---|---|---|---|
| Less than 45 years old | 13 | 17 | 30 |
| At least 45 years old | 22 | 83 | 105 |
| Total | 35 | 100 | 135 |
The table summarizes members of a local organization by age and whether they live north or south of Center St. If a member of the organization is selected at random, what is the probability that the selected member is at least 45 years old?
A
13530
B
13535
C
135100
D
135105