Data
India
Class IX
Create and interpret cumulative frequency polygons
Interactive practice questions
Consider the data below.
| Height (cm) | Frequency |
|---|---|
| $155\le h<160$155≤h<160 | $10$10 |
| $160\le h<165$160≤h<165 | $20$20 |
| $165\le h<170$165≤h<170 | $35$35 |
| $170\le h<175$170≤h<175 | $20$20 |
| $175\le h<180$175≤h<180 | $15$15 |
a
Create a cumulative frequency polygon from this data.
b
Estimate the median from the graph to the nearest $5$5 cm.
c
Estimate the upper and lower quartiles based off the graph.
Write both on the same line separated by a comma and to the nearest $5$5 cm.
d
Estimate the interquartile range from the answers to part (c).
Give your answer to the nearest $5$5 cm.
Easy
4 min
Consider the data below of times taken to walk to the nearest park.
Easy
3 min
Consider the cumulative frequency polygon below.
Easy
1 min
Consider the cumulative frequency polygon below.
Medium
1 min
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