Weighted mean (AQA 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 is a weighted mean?
What is a weighted mean?
An average with different importance
What does the symbol Σwx represent?
What does the symbol Σwx represent?
Total weighted value
How do you calculate the weighted mean?
How do you calculate the weighted mean?
Multiply, add, divide by weights
If weights are 2, 3, and 5, what is their sum?
If weights are 2, 3, and 5, what is their sum?
10
What is the weighted mean of 70 (weight 2) and 80 (weight 3)?
What is the weighted mean of 70 (weight 2) and 80 (weight 3)?
76
Why is the weighted mean useful?
Why is the weighted mean useful?
It highlights important values
What is the correct method for calculating a weighted average?
What is the correct method for calculating a weighted average?
Sum weighted values and divide by total weights
In a flower show, calculate the total score: shape (7, weight 1) and colour (9, weight 2).
In a flower show, calculate the total score: shape (7, weight 1) and colour (9, weight 2).
25
What is the weighted mean of 65% and 80% equally weighted?
What is the weighted mean of 65% and 80% equally weighted?
72.5%
What does a higher weight indicate?
What does a higher weight indicate?
More importance