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The range of the sample data is \( 386 \) hours, and the variance of the sample data is approximately \( 11267.1 \) (rounded to one decimal place).

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Here are 5 related questions to expand this topic:
1. How do we calculate the standard deviation based on variance?
2. What is the significance of variance in statistical analysis?
3. How would the inclusion of more data points affect the variance?
4. Is there a situation where the variance of a dataset could be zero?
5. How does sample variance differ from population variance?

**Tip:** The range gives you the spread between the maximum and minimum values, but the variance helps you understand how the data points spread out around the mean.

Listed below are the durations (in hours) of a simple random sample of all flights of a space shuttle program. Find the range, variance, and standard deviation for the sample data. Is the lowest duration time unusual? Why or why not?

This problem involves calculating the range, variance, and standard deviation for a sample of space shuttle flight durations. The range is 386 hours, and the variance is approximately 11267.1 (rounded to one decimal place). Learn how these statistical measures are computed and what they tell us about data spread.

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