Probability
There are 4 red marbles, 3 white marbles and 2 blue marbles.
What is the total possible outcome?
9
15/8
1 7/8
2/4 = /8
2/4 = 4/8
4/5 - 1/5=
3/5
2
5
2- 0,2,4,6,8,10
5- 0,5,10
=10
If there are 4 red marbles, 3 white marbles and 2 blue marbles, what's the probability that I will pick a blue marble?
2/9
24/6
4
3/6 = /12
3/6=6/12
2/4 + 1/4 =
2/4 + 1/4 = 3/4
3
6
9
3- 0,3,6,9,12,15,18
6- 0,6,12,18
9- 0,18
=18
If there are 4 red marbles, 3 white marbles and 2 blue marbles, what is the probability that I will choose a red or blue marble?
6/9 or 2/3
12/4
3
4/5 = /10
4/5 = 8/10
1/6 + 1/2 =
1/6 + 1/2 =
1/6 + 3/6 = 4/6
Simplify 4/6 divide top and bottom by 2
= 2/3
10
7
10 - 0,10,20,30,40,50,60,70,
7- 0,7,14,21,28,35,42,49,56,63,70
= 70
What is the probability that I will choose a green marble?
0
It is not possible.
30/7
4 2/7
2/12 = /24
2/12 = 4/24
4 2/3 - 2 1/3 =
4 2/3 - 2 1/3 = 2 1/3
25
20
25 - 0,25,50,75,100
20 - 0,20,40,60,80,100
=100
What is the probability that I will choose a red, white, or blue marble?
9/9 It is certain.
18/4
4 2/4 = 4 1/2
3/8 = /16
3/8 = 6/16
3 1/4 + 5 3/4=
8 4/4 = 9
8
3
4
8 - 0,8,16,24
3 - 0,3,6,9,12,15,18,21,24
4 - 0,4,8,12,16,20,24
=24