The diagonals of a quadrilateral are of lengths $10 \mathrm{cm}$ and $24 \mathrm{cm}$ If the diagonals bisect each other at right angles, find the length of each side of the quadrilateral. What special name can you give to this quadrilateral?

The following data consists of the hours spent each week watching television, as reported by a group of $38$ teenagers.

$$\begin{gathered} 4, 25, 6, 20, 18, 13, 3, 16, 0, 4, 19, 28, 11, \\ 7, 19, 3, 17, 15, 31, 27, 10, 6, 22, 18, 25, 8, \\ 5, 19, 12, 17, 20, 32, 9, 21, 25, 36, 17, 20 \end{gathered}$$

Construct a table to group this data using intervals of $0-5, 5-10\dots$ and so on.