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The range of the concrete strength values is **1210 psi**, and the sample standard deviation is approximately **502.76 psi**.

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Here are five related questions to expand on this:

1. How is the range helpful in understanding the variation of concrete strength?
2. What is the difference between population and sample standard deviation?
3. How would the results change if an additional strength value is added?
4. Why is it important to consider standard deviation in construction material testing?
5. How does standard deviation relate to data spread in quality control?

**Tip:** When computing standard deviation, always specify whether you're using a sample or the entire population, as it affects the divisor in the calculation.

Compute the range and sample standard deviation for strength of the concrete (in psi). Data: 3930, 4140, 3400, 3000, 2930, 3870, 4140, 4060

Learn how to compute the range and sample standard deviation for concrete strength data in psi. The given data set includes values like 3930, 4140, and 4060 psi, providing a practical example for applying statistical formulas. Ideal for high school students studying statistics.

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