To solve the two questions based on the provided histogram:

1. How many adults were questioned?

To find this, we need to add the number of adults for each category of "Number of Children" from the histogram.

• For 0 children: 5 adults
• For 1 child: 8 adults
• For 2 children: 4 adults
• For 3 children: 2 adults
• For 4 children: 1 adult
• For 5 children: 1 adult

Total number of adults = 5 + 8 + 4 + 2 + 1 + 1 = 21 adults

2. What percentage of the adults questioned had 2 children?

From the histogram, 4 adults have 2 children, and the total number of adults questioned is 21.

To calculate the percentage:

$\text{Percentage} = \left(\frac{4}{21}\right) \times 100 = 19.05\%$

Final answers:

• Number of adults questioned: 21 adults
• Percentage of adults with 2 children: 19.05%

Would you like more details or have any questions? Here are some related questions:

1. What percentage of adults had 1 child?
2. What is the mode of the number of children based on the histogram?
3. What is the median number of children based on this data?
4. How many adults had 3 or more children?
5. What is the range of the number of children?

Tip: To find percentages, always divide the part by the whole and multiply by 100 for accurate results.