MATHEMATICS · Multi-part · A Level · Mathematics · Data presentation and interpretation · Data presentation and interpretation
Problem
James goes bird watching for 25 days. The number of birds he sees each day are: 12, 5, 13, 16, 8, 10, 12, 18, 9, 11, 14, 14, 22, 9, 10, 7, 9, 11, 13, 7, 10, 6, 13, 3, 8
(1) Find the median, lower quartile, and upper quartile of the data set.
(2) Find the interquartile range of the data set.
(3) Find the lower and upper boundaries, and hence identify any outliers.
(4) Draw a box plot of the data set.