Section: Math 0 Likes
The line models the relationship between body weight and foot length (October 2022 U.S.)
The line models the relationship between body weight and foot length for a group of infants.
Based on the model, what is the predicted weight, in kilograms (kg), of an infant with a foot length of 9 centimeters (cm)?
A) 5
B) 7
C) 9
D) 11
Solution
Correct answer: B) 7.
Based on the graph, the predicted weight of an infant with a foot length of 9 centimeters is closest to 7 kg. The line passes through a point that is approximately (9, 7), indicating that an infant with a foot length of 9 centimeters would have a weight of around 7 kilograms.
It is important to note that this is still an estimate based on a model, and the actual weight of an infant with a foot length of 9 centimeters could be slightly higher or lower than 7 kg. Doctors use growth charts that take into account a variety of factors, including weight, length, and head circumference, to assess an infant's growth and development.
Exam Edition: October 2022 U.S.
Exam Year: 2022
Related topics: Growth and Development, Graph Reading