random

• random sampling is used to

  compare the numbers of organisms in different areas
• in random sampling the quadrat is placed at

  random locations across the area
• to select different locations for random sampling

  we use a random number generator
• what makes it less likely to get invalid results in random sampling

  keep moving into different areas until a large number of random locations
• which sampling method allows us to see and compare numbers of species of plants in different conditions

  random
• what is the equation used to estimate total population size of an area

  total population size = total area / area sampled ] x number of species of that species counted