Statistics: Practice 3

Practise focused skills from Statistics

MathematicsGrade 9Mixed10 questions20 min

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Focus question style

Section A: Core Practice · 5 questionsSection B: Application Practice · 5 questions

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Section A: Core Practice

Build the core ideas for this part of the chapter.

Choose the best answer for each question.

Question 1

MediumQuestion

A test score has weight $2$ and project score has weight $1$ . If the scores are $80$ and $95$ , what is the weighted average?

Topic: Weighted Average · Skill: Interpret weighted average in real-life situations

Question 2

MediumQuestion

Which is a statistical investigative question?

Topic: Data Interpretation · Skill: Draw conclusions from statistical graphs

Question 3

MediumQuestion

Which feature can make a bar graph misleading?

Topic: Data Interpretation · Skill: Identify misleading features in data displays

Question 4

MediumQuestion

Which is a statistical investigative question?

Topic: Computational Thinking with Data · Skill: Use a data-analysis workflow from question to conclusion

Question 5

AdvancedQuestion

A test score has weight $2$ and project score has weight $1$ . If the scores are $80$ and $95$ , what is the weighted average?

Topic: Weighted Average · Skill: Interpret weighted average in real-life situations

What this assignment covers

Progressive Grade 9 Math practice for Weighted Average to Computational Thinking with Data.

Skills and sections

Interpret weighted average in real-life situations, Draw conclusions from statistical graphs, Identify misleading features in data displays, Use a data-analysis workflow from question to conclusion

Section A: Core Practice: 5 questions
Section B: Application Practice: 5 questions