Some terminology that will be introduced in this packet is:
Source: Greene
In sports, you can look at standard deviation of scores to see how consistent a team is.
For example, If an NBA team has an average of 110 points per game, that is very good. But if they have a high standard deviation, that means that they will score very few points on certain nights, and a lot more points on other nights. You would rather have a team consistently scoring around 110 points, instead of scoring 85 points one night, and 135 points the next.
Land can change temperatures quite a bit easier than water. This means that even though the average temperature of two places may be the same, the standard deviations will vary greatly. A coastal city may have temperatures that vary between 40 and 70 degrees, whereas a city far inland could have a range of temperatures between -10 and 100 degrees. They have averages that are similar, but their standard deviations will vary greatly.
Source: Greene