1. 1.4 Non-Mutually- Exclusive (1/4)
Mutually Exclusive Events means that if one event occurs then the other does not.
Not All
Are !!!!!!

2. 1.4 Non-Mutually- Exclusive (2/4)
Venn Diagrams 5
Multiples
of 2
Multiples
of 3 1 6 14 2 9 4 3 10 12 7 8 15 11 13
for 1 to 15
Flash

3. 1.4 Non-Mutually- Exclusive (3/4)
P(A or B) =
P(A) +
P(B) -
P(A and B) 5 A B
Multiples
of 2
Multiples
of 3 1 6 2 9 4 3 10 12 7 8 11 13
P(Mult of 2 or 3) =
6/15 +
4/15 -
2/15 =
8/15

4. 1.4 Non-Mutually- Exclusive (4/4)
In a group of 20 boys, 11 play cricket and/or 15 play football.
Cricketers
Footballers
= 22
= 20
= 23
= 21
= 25
= 24
= 26 9
P(Play Both) = 20