1. SP 3.4: Estimating Size of Populations
Learning Target: I will use the capture-and-release method to estimate the size of populations.
Homework: 1) SP 3.4 Complete p. 14 and CORRECT with the Zaption video 3.4 2) SP Inv. 3 packet Completed & Signed
Warm Up: From the given data make a histogram.
23, 56, 65, 43, 42, 74, 12, 11 11, 10, 44, 46, 45, 33, 36

2. 23, 56, 65, 43, 42, 74, 12, 11 11, 10, 44, 46, 45, 33, 36
Put in order:
10, 11, 11, 12, 23, 33, 36, 42, 43, 44, 45, 46, 56, 65, 74 5 4 3 2 1
1-10
11-20
21-30
31-40
41-50
51-60
61-70
71-80
81-90
91-100

3. 2) Why are the other graphs misleading?
Warm-Up 2: Sometimes graphs can be misleading. The graphs below all display the same data about the percent of paper & paperboard recovered from
1) Which graph do you think gives the clearest picture of the data pattern? Explain.
2) Why are the other graphs misleading?

7. Percentage of marked beans:
As a class we will simulate the capture-tag-recapture method:
1. We will take a sample of 25 beans. Record the number of marked beans and the number of unmarked beans in the table.
Use the data to estimate the total number of beans in the container.
2. Use one of the two sets of data for 75, 100, 125, 150 beans.
p.13
Percentage of marked beans:
Choose either data set: A B A B

8. Percentage of marked beans:
As a class we will simulate the capture-tag-recapture method:
1. We will take a sample of 25 beans. Record the number of marked beans and the number of unmarked beans in the table.
Use the data to estimate the total number of beans in the container.
2. Use one of the two sets of data for 75, 100, 125, 150 beans.
p.13
Percentage of marked beans:
Choose either data set: A B A B

9. This experiment can be considered a simulation because it models a real-world process. People who study populations use the capture-tag-recapture method to estimate population sizes.

10. C. Using the table, make a final estimate for the number of total beans in the container Explain your reasoning.
E. What have you learned from this experiment? How do you think biologists count deer populations?

11. SP 3.4: Estimating Size of Populations
Did I reach my Learning Target? I will use the capture-and-release method to estimate the size of populations.
Homework: 1) SP 3.4 Complete p. 14 and CORRECT with the Zaption video 3.4 2) SP Inv. 3 packet Completed & Signed