. At a national park in Kenya, an automatic camera photographs the number of leopards passing by over a 1 year period. Last year, the camera took 120 photos of leopards, and it was determined that the 120 leopard photographs contained 55 distinct (different) leopards. How can we estimate N, the total number of leopards living in the park? (You can leave your answer as an equation containing N.) Hint: What is the expected number of distinct leopards