Read a Population Count without Guessing Why - Practice 2

5 questions0m 0s

Learn the skill

Compare counts taken with the stated same method. Later minus earlier gives the observed change. A count difference alone cannot tell whether births, deaths, movement or observation differences caused it. These records are invented.

Worked example

A sample area has 12 counted plants, then 17. The recorded count rose by 5; the count alone does not explain why.

Question 1 Fictional survey 6 records 17 organisms, then 21 using the same stated method. What is the increase in the recorded count? Answer

Question 2 Fictional survey 7 records 18 organisms, then 23 using the same stated method. What is the increase in the recorded count? Answer

Question 3 Fictional survey 8 records 19 organisms, then 25 using the same stated method. What is the increase in the recorded count? Answer

Question 4 Fictional survey 9 records 20 organisms, then 23 using the same stated method. What is the increase in the recorded count? Answer

Question 5 Fictional survey 10 records 21 organisms, then 25 using the same stated method. What is the increase in the recorded count? Answer