Grouped Frequency Tables (AQA GCSE Maths): Quizzes
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Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What do grouped frequency tables group data into?
What do grouped frequency tables group data into?
Intervals or ranges
What is the critical rule about class intervals in grouped frequency tables?
What is the critical rule about class intervals in grouped frequency tables?
There must be no gaps
In the class , where would the value 10 be placed?
In the class , where would the value 10 be placed?
In this class
How do you calculate the mid-interval value?
How do you calculate the mid-interval value?
Add boundaries, divide by 2
What is the mid-interval value for the class ?
What is the mid-interval value for the class ?
25
What is the modal class?
What is the modal class?
Class with highest frequency
What formula finds the median position when is the total number of data points?
What formula finds the median position when is the total number of data points?
What is the formula for estimating the mean from grouped data?
What is the formula for estimating the mean from grouped data?
How is the range estimated from grouped data?
How is the range estimated from grouped data?
Difference using class boundaries
Why are calculations from grouped frequency tables estimates rather than exact?
Why are calculations from grouped frequency tables estimates rather than exact?
Individual values are unknown