Measures of Spread (Grade 12 NSC Matric Mathematical Literacy): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
ShowHide
Practise the questions
10 questions from this quiz
What is the formula for calculating the range of a data set?
What is the formula for calculating the range of a data set?
Highest value - Lowest value
What is the main limitation of using range as a measure of spread?
What is the main limitation of using range as a measure of spread?
It only considers the two extreme values
What percentage of data values does each quartile section contain?
What percentage of data values does each quartile section contain?
25%
Which values make up the five number summary?
Which values make up the five number summary?
Min, , , , Max
What is the formula for calculating the interquartile range (IQR)?
What is the formula for calculating the interquartile range (IQR)?
Why is the IQR more reliable than the range when outliers are present?
Why is the IQR more reliable than the range when outliers are present?
IQR ignores extreme values
If a child's weight is at the 75th percentile, what does this mean?
If a child's weight is at the 75th percentile, what does this mean?
75% of children weigh less
What BMI percentile range indicates a healthy weight status?
What BMI percentile range indicates a healthy weight status?
5th to less than 85th percentile
If and , what is the IQR?
If and , what is the IQR?
69
Which quartile is the same as the 50th percentile?
Which quartile is the same as the 50th percentile?
(Median)