|
Stratum
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
|---|
|
X
1
|
0
|
1
|
0
|
0
|
1
|
1
|
0
|
1
|
|
X
2
|
0
|
0
|
1
|
0
|
1
|
0
|
1
|
1
|
|
X
3
|
0
|
0
|
0
|
1
|
0
|
1
|
1
|
1
|
|
Probability
|
0.300
|
0.176
|
0.563
|
0.391
|
0.563
|
0.096
|
0.794
|
0.836
|
- We define 8 strata based on combinations of 3 binary predictors X1, X2 and X3. The conditional probability of success of the outcome Y for each of these strata is given in the table. Outcomes Y are simulated within each stratum using a binomial random number generator with probability of success given in the table.
