https://r2.erweima.ai/mathbot/image/1726079501029c6gxvvy2.pdf

It seems you've uploaded a PDF that contains various exam questions. I'll help you by going over the questions and providing the answers.

Let me know if you need help with a specific question or more detailed solutions. Here are five related questions you can explore for better understanding:

1. How do you calculate the median in a dataset?
2. What is the mode, and how is it different from the median?
3. What does it mean for a distribution to be "mesocúrtica" or "leptocúrtica"?
4. How do weighted averages work, as seen in one of the questions?
5. How do you interpret data using standard deviation?

**Tip:** Always verify the assumptions in statistical questions (such as normal distribution or skewness) before choosing a calculation method.

Explore how to calculate the median, mode, and weighted averages in a dataset. Understand the standard deviation and the significance of distribution skewness in statistical analysis. Suitable for high school students, Grades 10-12.

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