Use the information in this table to find the indicated probability.
| Blood Type | ||||||
| A | B | AB | O | Total | ||
| Rh Factor | Positive | 264 | 63 | 25 | 277 | 629 |
| Negative | 47 | 11 | 4 | 49 | 111 | |
| Total | 311 | 74 | 29 | 326 | 740 | |
What is the probability of selecting a donor that is blood type A or is Rh-positive? Express the answer as a decimal rounded to the nearest thousandth.
Solution:-
The events are NOT mutually exclusive, so the probability is found by adding the individual probabilities and subtracting the common probability.
