Calculate the standard deviation and variance of the sample data shown, to two decimal places



x

27.6

1.2

29.4

12

26



Standard deviation: 

Variance: 


The variance of the sample data is **149.17** and the standard deviation is **12.21**.

Would you like further details or have any questions?

Here are some related questions to consider:
1. How do you interpret the standard deviation and variance in this context?
2. What is the difference between sample variance and population variance?
3. How would the values change if you added an outlier to the dataset?
4. What does a low standard deviation indicate about a dataset?
5. How is variance used in different statistical methods?

**Tip:** Remember that the variance is the square of the standard deviation, which means they represent the same information but on different scales.

Calculate the standard deviation and variance of the sample data shown, to two decimal places: 27.6, 1.2, 29.4, 12, 26

Discover how to calculate the variance and standard deviation of the sample data 27.6, 1.2, 29.4, 12, and 26. Using key statistical concepts and formulas, this step-by-step guide provides the variance as 149.17 and the standard deviation as 12.21. Ideal for students in Grades 10-12.

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