## Documents- Single 9-block
- Thirty-two 9-blocks
- Template for 3zees
- Sample Distribution
- Guide to Sample Stalagmite Model
## Netlogo Models## Discussions- Ways of Counting
- Tree Counting
- Binary Counting
- Concatenation
- Two Square Concatenation
- Other Concatenations
- Quantity Groups
- Independent Events
- Dependent Events
- Calculating Probability
- Counting Reconsidered
- Probabiliy Formula
- Independent Events Formula
- Apply Independent Events Formula
- Stalagmite Riddle
## Related Links |
## Apply Independent Events FormulaApplying the Independent Events (IE) Formula, we see that the probability of rolling two sixes in a row is: (1/6) * (1/6) = 1/36. We can also apply the IE Formula to find the probability of rolling a number less than three followed by a number greater than two. The probability of rolling a number less than three (a 1 or a 2) is 2/6 = 1/3. The probability of rolling a number greater than two (a 3, 4, 5, or 6) is 4/6 = 2/3. So the probability of rolling a number less than three followed by a number greater than two is (1/3) * (2/3) = 2/9. Compare the effort and results of this method with those of the brute force method shown earlier. |