Mathematics 9709 · AS & A Level · Continuous random variables

Continuous random variables — practice question

The weights, measured in kilograms, of cereal packets were recorded to $4$ significant figures. The stem-and-leaf diagram below displays the data. Key: $748\;|\;5$ indicates $0.7485\text{ kg}$.
(i)[5]

On the grid, construct a box-and-whisker plot for the data.

(ii)[2]

Name a distribution that could be a suitable model for the weights of this kind of cereal packet. Justify your answer.

Worked solution & mark scheme

This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: Try to determine the lower quartile, median and upper quartile

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI