Statistics 300: Introduction to Probability and Statistics

1
Statistics 300Introduction to Probability and
Statistics

• Section 1-3

2
Critical Thinking

• Statistical thinking often depends more on common
  sense than on math skills
• Here, we apply common sense with critical
  thinking about data and statistical analysis

3
Abuses of Statistics

• Bad samples
• Small samples
• Loaded questions
• Misleading graphs
• Pictographs

4
Abuses of Statistics

• Bad samples
• Small samples
• Loaded questions
• Misleading graphs
• Pictographs

5
(More) Abuses of Statistics

• Precise numbers
• Distorted percentages
• Partial pictures
• Deliberate distortions

6
Abuses of Statistics

• Bad samples

7
Abuses of Statistics

• Small samples

8
Abuses of Statistics

• Loaded questions

9
Abuses of Statistics

• Misleading graphs

10
Abuses of Statistics

• Pictographs

11
Abuses of Statistics

• Precise numbers

12
Abuses of Statistics

• Distorted percentages

13
Abuses of Statistics

• Partial pictures

14
Abuses of Statistics

• Deliberate distortions