Question

the table shows the ages and weights of babies at a hospital.
newborn class weight check

age (weeks)	1	2	3	3	4	4	6	8	9	9
weight (lbs)	7.5	7.25	8.2	7.95	8.0	9.75	9.25	8.9	9.85	10.0

what is the correlation between age and weight as shown in the table?

• none
• positive
• negative
• constant

Explanation:

To determine the correlation, we analyze the trend between age (in weeks) and weight (in lbs). As age increases (e.g., from 1 to 9 weeks), most of the weight values also increase (e.g., 7.5 at 1 week, 10.0 at 9 weeks; with some minor fluctuations but overall upward trend). A positive correlation exists when an increase in one variable (age) is associated with an increase in the other (weight).

Answer:

positive