Geometric mean (Edexcel GCSE Statistics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What type of average is used for growth rates and percentages?
What type of average is used for growth rates and percentages?
Geometric mean
How do you calculate the geometric mean of 8, 27, and 64?
How do you calculate the geometric mean of 8, 27, and 64?
Multiply then take cube root
In the geometric mean formula, what does n represent?
In the geometric mean formula, what does n represent?
Number of values
Why must you use the nth root in the geometric mean?
Why must you use the nth root in the geometric mean?
To undo multiplication
How do you find the geometric mean of percentages involving growth?
How do you find the geometric mean of percentages involving growth?
Multiply multipliers and take root
What should you do first when working with unknown values in a geometric mean problem?
What should you do first when working with unknown values in a geometric mean problem?
Set up an algebraic equation
When dealing with two percentage changes, what operation is used to find their geometric mean?
When dealing with two percentage changes, what operation is used to find their geometric mean?
Multiply their multipliers and take root
In geometric mean problems, why is it important to check calculator mode?
In geometric mean problems, why is it important to check calculator mode?
To use roots correctly
Why is the geometric mean preferred over the arithmetic mean for rates of change?
Why is the geometric mean preferred over the arithmetic mean for rates of change?
It accounts for multiplication
Which of the following is a key step in solving complex geometric mean problems?
Which of the following is a key step in solving complex geometric mean problems?
Set up algebraic equations