1. ## frequency

The temperatures of a room, recorded every hour for 7 hours a day for a 5-day week, were:

17.2, 19.5, 20.9, 16.4, 16.0, 18.4, 20.2, 20.6, 17.5, 19.4, 18.8, 21.1, 16.5, 17.0, 18.1, 19.3, 18.6, 19.5, 20.0, 16.2, 17.6, 19.4, 21.3, 19.6, 16.7, 17.4, 17.8, 18.7, 18.9, 20.1, 18.8, 19.8, 19.6, 20.5, 21.1, 20.3, 19.5, and 21.0

Construct a frequency disrtibution and state the range.

2. Hello, Zak!

Sorry, but I must ask this . . .
. . Where is your difficulty? .Counting or putting numbers in order?

$\displaystyle \begin{array}{cc}\text{Temp} & \text{freq} \\ \\ 16.0 & 1 \\16.2 & 1 \\ 16.4 & 1 \\ 16.5 & 1 \\ 16.7 & 1 \end{array}$

.$\displaystyle \begin{array}{cc}17.0 & \quad1 \\ 17.2 & \quad1 \\17.4 & \quad1 \\ 17.5 & \quad1 \\ 17.6 & \quad1 \\ 17.8 & \quad1 \end{array}$

.$\displaystyle \begin{array}{cc}18.1 & \quad1 \\ 18.4 & \quad1 \\ 18.6 & \quad1 \\ 18.7 & \quad1 \\18.8 & \quad2 \\ 18.9 & \quad1 \end{array}$

.$\displaystyle \begin{array}{cc}19.3 & \quad1 \\ 19.4 & \quad2 \\ 19.5 & \quad3 \\ 19.6 & \quad2 \\ 19.8 & \quad 1 \end{array}$

.$\displaystyle \begin{array}{cc}20.0 & \quad1 \\ 20.1 & \quad 2 \\ 20.2 & \quad 1 \\ 20.3 & \quad 1 \\ 20.5 & \quad 1 \\ 20.6& \quad1 \\ 20.9 & \quad 1 \end{array}$

.$\displaystyle \begin{array}{cc}21.1 & \quad 2 \\ 21.3 & \quad 1 \end{array}$