MATHEMATICS · Multi-part · A Level · Mathematics · Data presentation and interpretation · Data presentation and interpretation
Problem
The data below are the durations, in minutes, of Kirsten and Erika's last 25 phone calls.
*Kirsten:* 1.7 2.0 3.9 3.4 0.9 1.4 2.5 1.1 5.1 4.2 1.5 2.6 0.8
4.0 1.5 1.0 2.9 3.2 2.5 0.8 1.8 3.1 6.9 2.3 1.2
*Erika:* 2.0 4.8 1.2 7.5 3.2 5.7 3.9 0.2 2.7 6.8 3.4 5.2 3.2
7.2 1.7 11.5 4.0 2.4 3.7 4.2 10.7 3.0 2.0 0.9 5.7
(1) Find the five-number summary for each data set.
(2) Display the data in a parallel box plot.
(3) Compare and comment on the distributions of the data.