Variance and Standard Deviation (Grade 11 NSC Matric Mathematics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What do measures of central tendency NOT tell us about a dataset?
What do measures of central tendency NOT tell us about a dataset?
How spread out the data is
What is variance?
What is variance?
Average squared distance from the mean
If data is measured in cm, what are the units of variance?
If data is measured in cm, what are the units of variance?
How is standard deviation related to variance?
How is standard deviation related to variance?
SD is the square root of variance
What units does standard deviation have?
What units does standard deviation have?
Same units as the original data
What should always be calculated first when finding variance?
What should always be calculated first when finding variance?
The mean
What does a large variance indicate about a dataset?
What does a large variance indicate about a dataset?
Data is widely spread out
When does standard deviation equal zero?
When does standard deviation equal zero?
When all values are identical
In finance, what does standard deviation measure?
In finance, what does standard deviation measure?
Volatility (risk)