# Relative age dating worksheet

The second event, selecting a seven card, would be a ratio of 4/52.I got these ratios by using the desired outcome number as the numerator and the total possible outcomes as the denominator.If you are looking for the probability of two events happening at the same time, this is called the intersection of two events.Learn more about intersection in our Multiplication Rule of Probability lesson.This is the formula for non-mutually exclusive events: This formula is read as: The probability of event A or B is equal to the probability of event A plus the probability of event B minus the probability of event A and B.To find the probability of non-mutually exclusive events, follow these steps: First, the total number of possible outcomes of a deck of regular playing cards is 52, since there are 52 cards in a regular deck. Cheyenne needs to select a black card or a seven card.Each of these scenarios represents an event in probability.

Each person roles a die on his or her turn and moves the number of spaces indicated on the die.

Remember, rolling the die would be an example of a mutually exclusive event.

The die cannot land on two sides at the same time; therefore the probability of each side of the die is mutually exclusive.

This is an example of non-mutually exclusive events because the two events can occur at the same time.

Now let's look at how to use the Addition Rule of Probability to find the probability of mutually exclusive and non-mutually exclusive events.