Final answer:
The first quartile represents the weight below which 25% of 5-year-old males fall, the median represents the weight below which 50% of 5-year-old males fall, and the third quartile represents the weight below which 75% of 5-year-old males fall. The percentages of 5-year-old males falling within specific weight ranges can also be determined using the quartiles.
Step-by-step explanation:
The first quartile, or Q1, is the weight below which 25% of 5-year-old males fall. The median, or Q2, is the weight below which 50% of 5-year-old males fall. The third quartile, or Q3, is the weight below which 75% of 5-year-old males fall.
Percent of 5-year-old males weigh:
- Between 37 and 40 pounds: 50%
- Less than 40 pounds: 25%
- More than 40 pounds: 50%
- More than 37 pounds: 75%
- Between 40 and 42 pounds: 25%
- Less than 37 pounds: 25%