sometimes it is difficult or impossible to determine the population size before selecting a random sample. describe how you would go about selecting a random sample of trees from a 1-square mile area of forest.

Answer 1

Make a grid of a number of square feet, numbering the grids, randomly pick a number from 0-9 (however you want to do this), selecting only those grids ending with that number.

I hope this helps. Thanks for asking.