(i)[2]
Determine the median and quartiles for the females’ salaries.
(ii)[3]
Show the data using a pair of box-and-whisker plots on one diagram on graph paper.
Mathematics 9709 · AS & A Level · Sampling and estimation
Sampling and estimation — practice question
The back-to-back stem-and-leaf diagram below gives the yearly salaries of 39 females and 39 males. Key: $2|20|3$ represents $ a320\,200$ for females and $ a320\,300$ for males.