# S4-2: Evaluate statements made by others about the findings of statistical investigations and probability activities.

This means students will critically evaluate the strength of an argument proposed by others that is supported by statistical information. At Level Four students should consider features of the statistical investigation of others in weighing the strength of the findings. These features include the appropriateness of sampling methods (for example number, representativeness), quality of the data collection (for example questions asked, accuracy of measurement, fairness of the experiment), data analysis (technology use, choice of displays) and the extent to which claims made are supported by the evidence.

critique statistics used in advertising claims

construct a time-series graph using a computer

evaluate statements made about the data

use addition to sovle money problems

use multiplication and division to solve problems

find percentage of a number

solve problems involving ratios

find fraction of a number

create a bar graph

interpret information from a table/graph

evaluate a classmate's statement

identify data features of a graph

create a histogram

compare graphs

critique the graph as a data display

find all possible outcomes using a tree diagram

evaluate findings from probability activities

plan a survey

collect data

display data on a graph

interpret data

interpret information from tables

evaluate sample

make a conclusion

- Uses the statistical enquiry cycle to plan and conduct investigations
- Identifies broad area to explore using the statistical enquiry cycle
- Poses investigative questions about summary and relationship situations
- Makes predictions/assertions about what they expect to find out

- Plans300

Students will:

- estimate the energy change of a system
- calculate the amount of energy converted by different activities
- use rates to determine inputs and/or outputs.

Students should discover that:

- energy transfer is proportional to work (the more force x distance, the more energy)
- different forms of energy300

- Identify an area of interest to investigate.
- Find data displays including graphs, tables, and non-traditional data representations, that can inform the investigation e.g. from websites and other sources.
- Explore the information behind the data displays to make sense of the data and use it to300

find all possible outcomes using a tree diagram

evaluate findings from probability activities

create a back-to-back dot plot

make a conclusionn from the data

conduct an investigation and graph the results

decide which graph most clearly shows the data

answer questions from the graph

make predictions based on the data

conduct a survey

use a spreadsheet to create a bar graph

- Critically explore the validity of claims based on data.
- Evaluate the quality of survey questions that are developed by others.
- Create survey questions that align to an investigative question.
- Administer a survey, collate, and display the data, and report findings.

evaluate statements made about graphs

- Agree or disagree with a statement made about the findings of statistical investigations
- Give a reason for their evaluation of the statement
- Complete a statistical investigation by collecting, displaying and discussing data

conduct a simple probability experiment

compare experimental estimates of probability outcomes with a claimed probability and draw a conclusion

analyse survey questions

interpret information from graphs

find percentages of numbers

use addition and subtraction to solve money problems

compare results of experimental probabilities wiht other people

make a conclusion from the results of probability experiments

Students will:

- solve problems using rates and unit conversions.

interpret information from graphs

evaluate statements made about data

critique a survey

design a survey