Probability
1.4 Non-Mutually- Exclusive (1/4)
Mutually Exclusive Events means
that if one event occurs then the
other does not.
Not All
Are !!!!!!
1
Probability
1.4 Non-Mutually- Exclusive (2/4)
Venn Diagrams
Multiples
of 2
1
2 14
10
4
8
6
5
Multiples
of 3
9
12
3
7
15
13
11
for 1 to 15
Flash
2
Probability
1.4 Non-Mutually- Exclusive (3/4)
P(A or B) =P(A) + P(B) -P(A and B)
A
1
2
10
Multiples
of 2
4
6
12
5
B
Multiples
of 3
9
3
7
8
11
13
2
P(Mult of 2 or 3) = 6/15 + 4/15 - /15 = 8/15
3
Probability
1.4 Non-Mutually- Exclusive (4/4)
In a group of 20 boys, 11 play cricket
and/or 15 play football.
Cricketers
Footballers
10+
9
11+
+ 1
0
2
15
13
8
3
12
7
6
5
4 ++ 14
5
9
11
10
6
P(Play Both) = 9
20
== 20
25
26
24
23
22
21
4