Standard deviation shows how spread about the data is about the mean.
Here's a set of data, for which I will calculate the standard deviation:
Here are the heights of 5 Irish leprechauns:
500cm, 650mm, 430mm, 410mm, 560mm.
Step 1: Firstly, find the mean:
- 500+650+430+410+560 = 2550mm
- 2550 ÷ 5 = 510
- The mean is 510mm.
Step 2: Secondly, find the difference between the data and the…