Measures of Spread (HSC SSCE Mathematics Standard): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is the formula for calculating the range of a dataset?
What is the formula for calculating the range of a dataset?
Highest score Lowest score
Why might range not be the best measure of spread for a dataset with extreme values?
Why might range not be the best measure of spread for a dataset with extreme values?
It is heavily influenced by outliers
How many equal parts do quartiles divide an ordered dataset into?
How many equal parts do quartiles divide an ordered dataset into?
4 parts
What percentage of data falls below the first quartile ()?
What percentage of data falls below the first quartile ()?
25%
What is the formula for calculating the interquartile range (IQR)?
What is the formula for calculating the interquartile range (IQR)?
What does a smaller IQR indicate about a dataset?
What does a smaller IQR indicate about a dataset?
Data is more consistent or tightly clustered
What does standard deviation measure?
What does standard deviation measure?
How much data values vary from the mean
Which symbol represents sample standard deviation?
Which symbol represents sample standard deviation?
or
When should you use sample standard deviation instead of population standard deviation?
When should you use sample standard deviation instead of population standard deviation?
When you have a sample from a larger population
What does a small standard deviation indicate about a dataset?
What does a small standard deviation indicate about a dataset?
Data points cluster closely around the mean