Exercises for Question Type 2: Constructing cumilative frequency graphs given the frequency distribution table - IB
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IB Mathematics Applications & Interpretation Question Type 2: Constructing Cumilative Frequency Graphs Given the Frequency Distribution Table Exercises
S.3.1 - Frequency tables and cumulative frequency graphs.
A data set has the following frequency distribution with unequal class widths:
Class interval0–55–1515–3030–50Frequency410126
the cumulative frequency graph by plotting at the upper class boundaries.
[5]
Question 2
Skill question
The upper class boundaries and cumulative frequencies for a data set are:
Upper class boundary510152025Cumulative frequency39172430
the estimated frequency distribution table for the class intervals 0–5, 5–10, 10–15, 15–20 and 20–25.
[3]
Question 3
Skill question
The cumulative frequency distribution for the time to complete a task (in minutes) is given in the table below:
Time (minutes)1020304050Cumulative frequency618344650
Using linear interpolation within each class interval, the first quartile (Q1), the median (M), and the third quartile (Q3), and hence the interquartile range (IQR).
[6]
Question 4
Skill question
a cumulative frequency graph for the following frequency distribution:
Class interval10–1515–2020–2525–3030–35Frequency371294
[4]
Question 5
Skill question
A cumulative frequency table for exam scores is given by: