Fish Capture + Intersection

Total fish: 1000

Tagged (capture): 0

Circled (recapture): 0

Intersection size (tagged ∩ circled): 0

Tagged = captured fish (colored)

Circled = recaptured fish (ring)

Both = belong to both sets

Click "Capture" to randomly tag 200 fish. Click "Recapture" to pick a fresh 100 fish to circle. Intersection count is shown above.