Cumulative frequency/box plots (OCR GCSE Maths): Flashcards
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Definition of cumulative frequency
Definition of cumulative frequency
Running total of frequencies
What cumulative frequency shows
What cumulative frequency shows
How many data points are below a certain value
How to create cumulative frequency column
How to create cumulative frequency column
Add up frequencies as you move through the table
Last cumulative frequency entry equals
Last cumulative frequency entry equals
Total frequency
Alternative name for cumulative frequency curve
Alternative name for cumulative frequency curve
Ogive
Plot cumulative frequency against
Plot cumulative frequency against
Upper boundary of each group
Median is which percentile
Median is which percentile
50th percentile
Lower quartile () is which percentile
Lower quartile () is which percentile
25th percentile
Upper quartile () is which percentile
Upper quartile () is which percentile
75th percentile
Formula for
Formula for
What does measure
What does measure
Spread of middle 50% of data
and outliers
and outliers
Not affected by outliers
Five-number summary components
Five-number summary components
Minimum, , median, , maximum
Box plot: box extends from
Box plot: box extends from
to
Box plot: whiskers extend to
Box plot: whiskers extend to
Minimum and maximum values