From the image, we can analyze the bar graph to answer the questions:

1. How many adults were questioned? To find this, we should add up the heights of each bar, as each height represents the number of adults with a specific number of children.

2. What percentage of the adults questioned had 1 child? This requires finding the number of adults who indicated they had 1 child, dividing that by the total number of adults, and then multiplying by 100 to get a percentage.

Would you like me to go through the calculations in detail?

Related Questions:

1. What are some common ways to present data visually?
2. How can bar graphs be useful in comparing categories?
3. What is the formula for calculating percentages?
4. Why is it essential to interpret data accurately in surveys?
5. How can you determine the mode from a bar graph?

Tip: When calculating percentages, always ensure you’re dividing by the total for accurate results.