Practice Flashcards
Flip to reveal answersWhat does a frequency table show?
Track your progress — Sign up free to save your progress and get smart review reminders based on spaced repetition.
All 9 Flashcards — Frequency & histograms
Sign up free to track progress and get spaced-repetition review schedules.
Question
What does a frequency table show?
Answer
Each data value (or class) together with its frequency — how many times it occurs.
Question
What is the mode?
Answer
The data value that occurs most often (the highest frequency).
Question
How do you find the total number of data values from a frequency table?
Answer
Add up all the frequencies.
Question
What is a histogram?
Answer
A display of grouped continuous data using touching bars.
Question
On a histogram with equal-width classes, what does the bar height show?
Answer
The frequency of that class.
Question
Why do histogram bars touch?
Answer
The data is continuous, so the classes are adjacent intervals with no gaps.
Question
What is the modal class?
Answer
The class (interval) with the greatest frequency — the tallest bar.
Question
Difference between a histogram and a bar chart?
Answer
Histograms show continuous data (bars touch); bar charts show categories (bars have gaps).
Question
Mode vs frequency — what's the trap?
Answer
The mode is the data value itself, not the frequency written beside it.
Read the notes
Full study notes for Frequency & histograms
Topic 4.2 hub
Data presentation
More from Topic 4.2
All flashcards in this topic
Math AA SL exam skills
Paper structures & tips
Track your progress with spaced repetition
Sign up free — Aimnova tells you exactly which cards to review and when, so you remember everything before your IB exam.
Start Free