0.02 0.98 0.01 0.99 Tampering Fire 0.5 0.5 0.85 0.15 0.99 0.01 0.0001 0.9999 Fire 0.9 0.1 0.01 0.99 Alarm 0.88 0.12 0.001 0.999 Leaving 0.75 0.25 0.01 0.99 Tampering 178 35 365 111 Alarm 382 178 569 254 Fire 586 35 773 111 Smoke 790 178 977 254 Leaving 383 322 570 398 Report 383 466 570 542