Let's analyze the histogram and the corresponding questions.

From the image, we can see that the histogram represents the number of siblings ("hermanos") for a set of surveyed people, with the frequency on the vertical axis (y-axis) and the number of siblings on the horizontal axis (x-axis). Here is a breakdown of the histogram and answers to the questions based on the visual information:

1. How many people have three siblings?

   • According to the histogram, for "3 hermanos" (3 siblings), the bar reaches a frequency of 18.
   • Answer: 18 people.

2. How many people are only children? ("hijos únicos")

   • Being an only child corresponds to 0 siblings. For "0 hermanos," the bar reaches a frequency of 6.
   • Answer: 6 people.

3. How many people combined have four or five siblings?

   • For "4 hermanos" (4 siblings), the frequency is 10.
   • For "5 hermanos" (5 siblings), the frequency is 6.
   • Combined, 10 + 6 = 16 people.

4. How many people have only one sibling?

   • For "1 hermano" (1 sibling), the frequency is 14.
   • Answer: 14 people.

5. How many people have nine siblings?

   • For "9 hermanos" (9 siblings), the frequency is 1.
   • Answer: 1 person.

Would you like more details or clarifications about any specific part of the histogram analysis?

Here are some related questions for further practice:

1. What is the most common number of siblings based on the histogram?
2. What is the total number of people surveyed?
3. What is the least common number of siblings?
4. How many people have more than 6 siblings?
5. How many people have fewer than 3 siblings?

Tip: When interpreting histograms, always carefully observe both the x-axis and y-axis to understand the distribution and frequency of data.