Probability: Mutually Exclusive and Overlapping Events
In probability theory, two events are said to be mutually exclusive if they cannot occur at the same time or simultaneously. 
If two events are considered mutually exclusivethen the probability of both events occurring at the same time will be zero.
Event A: Coin lands on heads.

Event B: Same coin lands on tails.
Mutually exclusive
Non-mutually exclusive
Event A:  Roll a 6 on a number cube

Event B: Roll an even number on a number cube


Mutually Exclusive
Non-mutually Exclusive
Event A:   Draw a king from a deck a cards

Event B:   Draw a 'heart' from a deck of cards
Mutually Exclusive 
Non Mutually Exclusive
Event A: Roll a 1 on a number cube

Event B: Roll an even number on a number cube
Non mutually exclusive
Mutually exclusive
Event A:  Draw a black card from a deck

Event B: Draw a red card from a deck
Mutually exclusive
Non-mutually exclusive
Two events are said to be mutually exclusive if they can not occur at the same time. 
If two events are mutually exclusive, then the probability of both events occurring at the same time is zero. 
If events A and B are mutually exclusive, then: 
        P(A) or P(B) = P(A) + P(B)
        P(A) and P(B) = 
If events are not mutually exclusive, then they are overlapping
If two events are overlapping, then they can both occur at thesame time.
If events C and D are overlapping, then: 
       P(C) or P(D) = P(C) + P(D) – P(C and D)
       where P(C and D) ≠ 
Mutually Exclusive
Answer Yes or No
Overlapping
Tell if the following event is mutually exclusive
or overlapping then answer the question.

A bag contains 6 red balls numbered 1,2,4,5,8,9 and
4 white balls numbered 3,6,7,10.  

If a ball is drawn at random, what is the probability 
the ball is red or odd-numbered? 
Write Answer as a Fraction
Probability
Reduce Your Answer
A bag contains 6 red balls numbered 1, 2, 4, 5, 8, 9
and 4 white balls numbered 3, 6, 7, 10. 

If a ball is drawn at random, what is the probability that the ball is red or 10?
Answer Yes or No
Mutually Exclusive
Tell if the following event is mutually exclusive
or overlapping, then answer the question.

Overlapping
Reduce Your Answer
Write Answer as a Fraction
Probability
A bag contains 6 red balls numbered 1, 2, 4, 5, 8, 9
and 4 white balls numbered 3, 6, 7, 10. 

If a ball is drawn at random, what is the probability that the ball is white or a multiple of 3?
Mutually Exclusive
Tell if the following event is mutually exclusive
or overlapping, then answer the question.

Answer Yes or No
Overlapping
Reduce Your Answer
Write Answer as a Fraction
Probability
Mutually Exclusive
A bag contains 6 red balls numbered 1, 2, 4, 5, 8, 9
and 4 white balls numbered 3, 6, 7, 10. 

If a ball is drawn at random, what is the probability that the ball is red or white?
Answer Yes or No
Tell if the following event is mutually exclusive
or overlapping, then answer the question.

Overlapping
Probability
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