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#285

pandasecret (01/09/2013) []
**pandasecret rolls 3,589**
The chance of me getting quads is 1/1111
The chance of me getting quads is 1/1111
#330 to #327

psykobear (01/10/2013) []
Actually, the wholes set is 10,000 numbers because you are excluding 0000 from the set, even though it could be rolled.
# of 1 digit numbers (09):10 or 10^1 or 10
# of 2 digit numbers (0099):100 or 10^2 or 10*10
# of 3 digit numbers (000999):1,000 or 10^3 or 10*10*10
# of 4 digit numbers (00009999):10,000 or 10^4 or 10*10*10*10
# of 1 digit numbers (09):10 or 10^1 or 10
# of 2 digit numbers (0099):100 or 10^2 or 10*10
# of 3 digit numbers (000999):1,000 or 10^3 or 10*10*10
# of 4 digit numbers (00009999):10,000 or 10^4 or 10*10*10*10
#331 to #330

psykobear (01/10/2013) []
Or, thanks to probability, you could think of it as this:
Possible outcomes for the 1st digit:10 (09)
Possible outcomes for the 2nd digit:10 (09)
Possible outcomes for the 3rd digit:10 (09)
Possible outcomes for the 4th digit:10 (09)
Multiply the possible outcomes: 10 * 10 * 10 * 10 = 10,000 (00009999)
Possible outcomes for the 1st digit:10 (09)
Possible outcomes for the 2nd digit:10 (09)
Possible outcomes for the 3rd digit:10 (09)
Possible outcomes for the 4th digit:10 (09)
Multiply the possible outcomes: 10 * 10 * 10 * 10 = 10,000 (00009999)
#333 to #331

psykobear (01/10/2013) []
Now, we know for sure that there are 10,000 possible outcomes. When finding the probability of selecting one at random, you put the number of outcomes you want over the number of total possible outcomes.
If you count 0000 as a quad:_______________________________________
Wanted outcomes(quads, including 0000):10 (0000, 1111, 2222, etc.)
Total possible outcomes:10,000 (0000, 0001, 0002, etc.)
Chance of rolling quads (including 0000):10/10,000 or 1/1000 0r .001
If you DON'T count 0000 as a quad:_________________________________
Wanted outcomes(quads, except 0000):9 (1111, 2222, 3333, etc.)
Total possible outcomes(doesn't change):10,000 (0000, 0001, 0002, etc.)
Chance of rolling quads (excluding 0000):9/10,000 or .0009
If you count 0000 as a quad:_______________________________________
Wanted outcomes(quads, including 0000):10 (0000, 1111, 2222, etc.)
Total possible outcomes:10,000 (0000, 0001, 0002, etc.)
Chance of rolling quads (including 0000):10/10,000 or 1/1000 0r .001
If you DON'T count 0000 as a quad:_________________________________
Wanted outcomes(quads, except 0000):9 (1111, 2222, 3333, etc.)
Total possible outcomes(doesn't change):10,000 (0000, 0001, 0002, etc.)
Chance of rolling quads (excluding 0000):9/10,000 or .0009