Question

What is the range for the following set of measurements?

27°C, 12°C, 31°C, 19°C, 23°C, 11°C, 17°C

Answer 1

The range is `20`

Explanation:

First of all, the range is the difference between the highest number and the lowest number in a given group of numbers. Here is our group. I got rid of °C so that it's easier to see the numbers:

`27, 12, 31, 19, 23, 11, 17`

Let's put them in order from lowest to highest:
`color(blue)11,12,17,19,23,27,color(red)31`

`color(blue)11` is our lowest number and `color(red)31` is our highest number.

`"highest number" - "lowest number" = "range"`
`color(red)31 - color(blue)11 = "range"`
`20 = "range"`