Univariate Data
New Zealand
Level 5
Create and interpret cumulative frequency polygons
Interactive practice questions
Answer the following questions from the frequency histogram below.
a
Complete the table of the frequency distribution.
| Class limits | Midpoint | Frequency | Cumulative Frequency |
|---|---|---|---|
| $\left(21.5,24.5\right)$(21.5,24.5) | $23$23 | $\editable{}$ | $\editable{}$ |
| $\left(24.5,27.5\right)$(24.5,27.5) | $26$26 | $\editable{}$ | $\editable{}$ |
| $\left(27.5,30.5\right)$(27.5,30.5) | $29$29 | $\editable{}$ | $\editable{}$ |
| $\left(30.5,33.5\right)$(30.5,33.5) | $32$32 | $\editable{}$ | $\editable{}$ |
| $\left(33.5,36.5\right)$(33.5,36.5) | $35$35 | $\editable{}$ | $\editable{}$ |
| $\left(36.5,39.5\right)$(36.5,39.5) | $38$38 | $\editable{}$ | $\editable{}$ |
| $\left(39.5,42.5\right)$(39.5,42.5) | $41$41 | $\editable{}$ | $\editable{}$ |
b
Construct a frequency polygon from this data.
c
Construct an ogive from this data.
d
How many values are in the class $27.5$27.5 to $30.5$30.5?
e
How many values fall between $24.5$24.5 and $36.5$36.5?
f
How many values are below $33.5$33.5?
g
How many values are above $30.5$30.5?
Easy
7min
Consider the data below.
Easy
4min
Consider the data below of times taken to walk to the nearest park.
Easy
3min
Consider the cumulative frequency polygon below.
Easy
1min
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