Specific Skills (AQA A-Level Geography): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What does N represent in the arithmetic mean formula x̄ = ΣX/N?
What does N represent in the arithmetic mean formula x̄ = ΣX/N?
Number of values in the dataset
What is the mode in a dataset?
What is the mode in a dataset?
The value that appears most frequently
If a dataset has 15 values, at which position is the median located?
If a dataset has 15 values, at which position is the median located?
8th position
In positive skew, which direction do high values pull the mean?
In positive skew, which direction do high values pull the mean?
Up
How is the range calculated?
How is the range calculated?
Highest value - Lowest value
What is the main limitation of using the range?
What is the main limitation of using the range?
Heavily influenced by extreme values
What does the inter-quartile range show?
What does the inter-quartile range show?
Spread of the middle 50% of data
What is the formula for finding the lower quartile position?
What is the formula for finding the lower quartile position?
(n+1)/4
What does a large standard deviation indicate?
What does a large standard deviation indicate?
Data values are widely spread from mean
Why should the mean always be used alongside standard deviation?
Why should the mean always be used alongside standard deviation?
Mean alone gives incomplete picture