Daily social-media times, in minutes, for 15 students are
6,25,39,62,65,74,80,94,125,127,154,159,184,210,2516,25,39,62,65,74,80,94,125,127,154,159,184,210,2516,25,39,62,65,74,80,94,125,127,154,159,184,210,251.
Find the median and quartiles.
Show that there are no outliers using the 1.5×IQR1.5\times\mathrm{IQR}1.5×IQR rule.
Draw a box plot.
8 exam-style questions on OCR (MEI) A Level Maths 2.2.1 Types of data and standard diagrams. Each one has a worked solution and a mark scheme showing where the marks go.