What are some examples of standard deviation in real life?

What are some examples of standard deviation in real life?

Standard deviation measures the amount of variation in a set of values. For example, in finance, it can show the volatility of stock prices.

Can you give me a specific example related to test scores?

Sure! If a class has test scores of 70, 75, 80, 85, and 90, the standard deviation helps us understand how spread out these scores are from the average.

How does standard deviation apply to weather data?

In weather data, standard deviation can indicate how much daily temperatures vary from the average temperature over a month or year.

What does a high standard deviation indicate?

A high standard deviation indicates that the data points are spread out over a wider range of values, showing more variability.

Can you explain how to calculate standard deviation?

Certainly! To calculate standard deviation, you find the mean, subtract the mean from each data point, square the results, find the average of those squares, and then take the square root.