(i)[4]
Show the data in a back-to-back stem-and-leaf diagram, with sugar placed on the left-hand side.
(ii)[3]
Determine the median and interquartile range of the weights of the bags of sugar.
Mathematics 9709 · AS & A Level · Sampling and estimation
Sampling and estimation — practice question
The masses, in kilograms, of $11$ bags of sugar and $7$ bags of flour are given below. Sugar: $1.961, 1.983, 2.008, 2.014, 1.968, 1.994, 2.011, 2.017, 1.977, 1.984, 1.989$. Flour: $1.945, 1.962, 1.949, 1.977, 1.964, 1.941, 1.953$.