Measures of Centre (VCE SSCE General Mathematics): 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 statistic?
What is a statistic?
Any number calculated from data
How is the mean calculated?
How is the mean calculated?
Sum of data values ÷ number of values
In the formula , what does mean?
In the formula , what does mean?
Sum of
What does the median represent?
What does the median represent?
Middle value when ordered from smallest
For (odd), which position is the median?
For (odd), which position is the median?
12th position
For (even), which positions give the median?
For (even), which positions give the median?
Average of 9th and 10th values
What is the most commonly forgotten step when finding the median?
What is the most commonly forgotten step when finding the median?
Arrange data in ascending order first
When should the median be used instead of the mean?
When should the median be used instead of the mean?
When distribution is skewed or has outliers
How does the mean behave in a positively skewed distribution?
How does the mean behave in a positively skewed distribution?
Mean is pulled towards extreme values
When is the mean the preferred measure of centre?
When is the mean the preferred measure of centre?
Distribution is symmetric, no outliers