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 |
Create a cumulative frequency polygon from this data.
Estimate the median from the graph to the nearest $5$5 cm.
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.
Estimate the interquartile range from the answers to part (c).
Give your answer to the nearest $5$5 cm.
Consider the data below of times taken to walk to the nearest park.
Consider the cumulative frequency polygon below.
Consider the cumulative frequency polygon below.