You will receive a bag that represents your population (beans, pennies, chips, beads) Trial Number Number Capture 10 “animals” by removing them randomly Number Captured Recaptured from the bag. with mark Place a mark on them using tape or string 1 Return the 10 marked “animals” to the container 2 With your eyes closed, grab a handful of the population. This is the recapture step. Record the 3 number of “animals” recaptured in total and the 4 number that have a mark on them on the data table 5 Return the “animals” to the bag and repeat. Do 10 recaptures. 6 When the ten recaptures are completed, enter the 7 totals on the data table 8 9 10 Total: 4. Calculations= Find your population estimate Estimated size = __________ 5. Use the code name on your bag to check the actual number of “animals” in your bag. ACTUAL POPULATION SIZE = _____________ ANALYSIS 6. Compare the actual size to the estimated size. Did you overestimate or underestimate? Trial Number Number Number Captured Recaptured with mark 11 12 13 14
Trial Number Number Captured Number Recaptured with mark 1 2 3 4 5 6 7 8 9 10 Total: You will receive a bag that represents your population (beans, pennies, chips, beads) Capture 10 “animals” by removing them randomly from the bag. Place a mark on them using tape or string Return the 10 marked “animals” to the container With your eyes closed, grab a handful of the population. This is the recapture step. Record the number of “animals” recaptured in total and the number that have a mark on them on the data table Return the “animals” to the bag and repeat. Do 10 recaptures. When the ten recaptures are completed, enter the totals on the data table 4. Calculations= Find your population estimate Estimated size = __________ 5. Use the code name on your bag to check the actual number of “animals” in your bag. ACTUAL POPULATION SIZE = _____________ ANALYSIS 6. Compare the actual size to the estimated size. Did you overestimate or underestimate? Trial Number Number Captured Number Recaptured with mark 11 12 13 14