Question

the table shows the weight of a dog in pounds at various ages in months.
age vs. weight of a dog
age in months\tweight in pounds
3\t2
4\t5
6\t7
8\t10
9\t11
12\t15
what values should be entered for x and y into a regression calculator to find the equation of the trend line?
○ x: 3, 4, 6, 8, 9, 12
y: 2, 5, 7, 10, 11, 15
○ x: 3, 4, 6, 8, 9, 15
y: 2, 5, 7, 10, 11, 12

Explanation:

To find the trend line, \( x \) represents the independent variable (age in months) and \( y \) represents the dependent variable (weight in pounds). From the table, the age values (x) are 3, 4, 6, 8, 9, 12 and the weight values (y) are 2, 5, 7, 10, 11, 15. The second option swaps age and weight values incorrectly. So the first option has the correct \( x \) and \( y \) values.

Answer:

A. \( x \): 3, 4, 6, 8, 9, 12; \( y \): 2, 5, 7, 10, 11, 15