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.