Standard Deviation (Leaving Cert Mathematics): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What does standard deviation measure in statistics?
What does standard deviation measure in statistics?
How far values are from the mean
What does a small standard deviation indicate?
What does a small standard deviation indicate?
Data clustered close to the mean
Which Greek letter represents standard deviation?
Which Greek letter represents standard deviation?
(sigma)
According to the Empirical Rule, what % of values lie within one standard deviation of the mean?
According to the Empirical Rule, what % of values lie within one standard deviation of the mean?
68%
What % of values lie within two standard deviations of the mean?
What % of values lie within two standard deviations of the mean?
95%
What % of values lie within three standard deviations of the mean?
What % of values lie within three standard deviations of the mean?
99.7%
If mean height is 177 cm with SD of 8 cm, where are 68% of heights?
If mean height is 177 cm with SD of 8 cm, where are 68% of heights?
Between 169 cm and 185 cm
How many steps are in the procedure for calculating standard deviation?
How many steps are in the procedure for calculating standard deviation?
6 steps
What is the first step in calculating standard deviation?
What is the first step in calculating standard deviation?
Calculate the mean
What is the formula for standard deviation with simple data?
What is the formula for standard deviation with simple data?
What is the formula for standard deviation with frequency distributions?
What is the formula for standard deviation with frequency distributions?
Which property must standard deviation always have?
Which property must standard deviation always have?
Cannot be negative