From basic thermodynamic principles, I would normally expect prey species to be much more abundant than predators. Applying that to North American species like deer, wolves and bears, I would expect deer to be much more abundant, and when I run some Google searches, though the estimates for actual numbers per square kilometer span wide ranges, they all qualitatively agree with this expectation.
But looking at e.g. this trail camera footage from Algonquin Park
Wolves and bears seem to show up about as often as the various deer species (white-tailed deer, moose, and something else, elk?) to within, say, a factor of two.
Why the apparent discrepancy between theoretical expectation and observed data? It's not a peculiarity of that location; I've seen a similar pattern in trail camera footage from several states.
Which ratio corresponds to experience of going for a walk in Algonquin Park? Are you about equally likely to encounter any of the large animal species, as the trail camera footage would suggest?