IB Maths AA SL 4.2 Data presentation Question Bank
Practise IB Mathematics SL/HL 4.2 by applying data presentation methods to exam-style questions.
- Syllabus
- First assessment 2021
- Course
- Mathematics: analysis and approaches SL
- Level
- SL
Practise IB Mathematics SL/HL 4.2 by applying data presentation methods to exam-style questions.
The following cumulative frequency graph shows the monthly income, I dollars, of 2000 families.

Find the median monthly income.
recognizing that the median is at half the total frequency
(M1)
eg 22000
m=2500 (dollars)
Write down the number of families who have a monthly income of 2000 dollars or less.
500 families have a monthly income less than 2000
A1
N1
Find the number of families who have a monthly income of more than 4000 dollars.
The 2000 families live in two different types of housing. The following table gives information about the number of families living in each type of housing and their monthly income I.

correct cumulative frequency, 1850
subtracting their cumulative frequency from 2000
eg 2000-1850
150 families have a monthly income of more than 4000 dollars
Note: If working shown, award M1A1A1 for 128+22=150, using the table.
Find the value of p.
correct calculation
eg 2000-(436+64+765+28+122), 1850-500-765
p=585