Use a calculator to find the mean of the data.
{225, 240, 199, 238, 205, 241, 225, 233, 219, 221, 222, 210, 195, 230, 225, 214, 234, 204, 240, 199, 208, 245}

A. 221.221

B. 221.455

C. 220.455

D. 220.221

The mean of the data is approximately **221.455**, so the correct answer is:

**B. 221.455**

Do you want details or have any questions?

Here are 8 questions related to this problem:

1. How is the mean calculated for a data set?
2. Why is it important to calculate the mean in statistics?
3. What is the difference between the mean, median, and mode?
4. How can outliers affect the mean of a data set?
5. What are some real-life examples where calculating the mean is useful?
6. How does the mean compare to other measures of central tendency?
7. What is the effect of adding a constant to every value in the data set on the mean?
8. Can the mean be a non-integer even if all the data points are integers?

**Tip:** Remember, the mean is sensitive to extreme values (outliers), so always consider the data distribution when interpreting the mean.

Learn how to calculate the mean (average) of a data set: 225, 240, 199, 238, 205, 241, 225, 233, 219, 221, 222, 210, 195, 230, 225, 214, 234, 204, 240, 199, 208, 245 with a detailed step-by-step solution. Understand why the mean is important in statistics and how outliers can affect its value. Suitable for students in Grades 9-12.

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