(i)[3]
Draw a stem-and-leaf diagram to show the data.
(ii)[5]
On graph paper draw a box-and-whisker plot to show the data.
Mathematics 9709 · AS & A Level · Sampling and estimation
Sampling and estimation — practice question
In a random sample of 25 people, the number of glasses of water each person drank during one particular week was recorded. The results are given below: $23,\;19,\;32,\;14,\;25,\;22,\;26,\;36,\;45,\;42,\;47,\;28,\;17,\;38,\;15,\;46,\;18,\;26,\;22,\;41,\;19,\;21,\;28,\;24,\;30$.