A scientist wants to estimate the total number of toads in a marsh. She catches 62 toads, tags them and then returns them to the marsh. The next day she catches 55 toads. She finds that 10 have tags. a) Work out an estimate for the total number of toads in the marsh. b) Which of the following assumptions did you need to make to work out your estimate? Select all that apply. Some of the tags were removed Tagged toads were more likely to be recaptured The samples taken for capture and recapture were not random The number of toads in the marsh did not change between capture and recapture The tagged toads thoroughly mixed into the rest of the toad population