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education/statistics/Probability.md
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@ -72,6 +72,8 @@ To make a box model, answer the following questions:
The number of draws is the amount of events. The number of draws is the amount of events.
The number of outcomes is the number of tickets The number of outcomes is the number of tickets
In the example of a dice roll, you would create tickets 1, 2, 3, 4, 5, 6, and include the number of times you roll the die next to it. In the example of a dice roll, you would create tickets 1, 2, 3, 4, 5, 6, and include the number of times you roll the die next to it.
m
The *expected value*(EV) for the *sum* of all draws is $num_{draws}*ave_{box}$. The *expected value*(EV) for the *sum* of all draws is $num_{draws}*ave_{box}$.
The *standard error* for the sum of all draws is the The *standard error* (SE) for the sum of all draws is $\sigma_{box} \sqrt{num_{draws}}$
68% of the data will be within +- 1 SE of the EV.