Start impl MCMC

   Coffee Shop Purchase Analysis
┏━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━┓
┃ Metric                  ┃ Value ┃
┡━━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━┩
│ No Purchase Probability │   18% │
│ Coffee Only Probability │   33% │
│ Pastry Only Probability │   20% │
│ Both Items Probability  │   27% │
│ Expected Daily Revenue  │ $3.00 │
└─────────────────────────┴───────┘


      Average Purchase Pattern Streaks
┏━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
┃ Purchase Type ┃ Avg. Streak Length (Days) ┃
┡━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━━━━━━━━━━━━━━┩
│ No Purchase   │                       1.6 │
│ Coffee Only   │                       1.7 │
│ Pastry Only   │                       1.6 │
│ Both Items    │                       1.7 │
└───────────────┴───────────────────────────┘