## Exam-Style Questions on Box Plots## Problems on Box Plots adapted from questions set in previous exams. |

## 1. | GCSE Higher |

The box plot shows information about the distribution of the times (in minutes) groups of customers spend in a open-air restaurant.

(a) Calculate the interquartile range for the amount of time groups spend in this open-air restaurant.

The table below shows information about the distribution of the times (in minutes) groups of customers spend in an indoor restaurant.

Minimum | Lower Quartile | Median | Upper quartile | Maximum | |

Time in minutes | 30 | 45 | 62 | 82 | 94 |

(b) On the lower half of the grid above, draw a box plot for the information in the table.

(c) Hunter thinks that the total amount of time spend by all of the customers visiting the indoor restaurant is greater than the total amount of time spend by all of the customers visiting the open-air restaurant. Is Hunter correct? Explain your decision.

## 2. | GCSE Higher |

One day a theme park monitored the time spent by guests at six different areas of the park. The times are recorded in the box plots below.

(a) Work out the range in times at Future Zone.

(b) At which area were visitor times the most consistent? Give a reason for your answer.

(c) Give one similarity and one difference between the distributions of the guest visiting times for Nature Park and Fantasy Land.

(d) Is it possible to work out from the box plots which area had the most visitors? Explain your answer.

## 3. | IB Studies |

The distribution of daily average wind speed on an island over a period of 120 days is displayed on this box-and-whisker diagram.

(a) Write down the median wind speed.

(b) Write down the minimum wind speed.

(c) Find the interquartile range.

(d) Write down the number of days the wind speed was between 20 kmh^{-1} and 51 kmh^{-1}.

(e) Write down the number of days the wind speed was between 9 kmh^{-1} and 68 kmh^{-1}.

The exam-style questions appearing on this site are based on those set in previous examinations (or sample assessment papers for future examinations) by the major examination boards. The wording, diagrams and figures used in these questions have been changed from the originals so that students can have fresh, relevant problem solving practice even if they have previously worked through the related exam paper.

The solutions to the questions on this website are only available to those who have a Transum Subscription.

Exam-Style Questions Main Page

To search the **entire Transum website** use the search box in the grey area below.

Do you have any comments? It is always useful to receive feedback and helps make this free resource even more useful for those learning Mathematics anywhere in the world. Click here to enter your comments.

Kausar Begum Khan, Kenya

Friday, January 26, 2018

"This is a fabulous website! I cannot thank you enough."

Aruna Upadhyayula, Bahrain

Tuesday, November 6, 2018

"Transum is so resourceful. The resources are so child-friendly that my students love its usage.It has a wide range of topics and caters to most of my needs. 'Thankyou" will be too small a word to express my gratitude to the content developers of this site."

Ahmed Jaja, Ghana

Thursday, November 22, 2018

"It was very useful for me.I recommend it to every math student.Thank you."