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1.2.4 You wish to determine the GPA of students at your school.Describe what process you would go through to collect a sample if you use a stratified sample.

1.Collect every student name.

2.Divide each student by major.

1.4.14 An employee survey says, "Employees at this institution are very satisfied with working here.Please rate your satisfaction with the institution."Discuss how this question could create bias.

2.1.4 In Connecticut households use gas, fuel oil, or electricity as a heating source.Table #2.1.7 shows the percentage of households that use one of these as their principle heating sources ("Electricity usage," 2013), ("Fuel oil usage," 2013), ("Gas usage," 2013).Create a bar chart and pie chart of this data.State any findings you see from the graphs.

Table #2.1.7: Data of Household Heating Sources

Heating Source

Percentage

Electricity

15.3%

Fuel Oil

46.3%

Gas

35.6%

Other

2.8%