Question

1. identify the independent variable and dependent variable for each of the graphs in model 3.

graph d
average number of candies in bag
blue
brown
green
orange
red
yellow
graph e
sprint time (sec)
10 11 12 13 14 15 16 17 18 19
70
80
90
100
leg length (cm)
leg length vs. sprint time

1. match the experimental questions below to the appropriate graph from model 3.

a. “is the number of candies in a bag of chocolates dependent on the color of the candy?”
graph _
b. “does the length of a person’s leg affect the time it takes them to sprint 60 yards?”
graph _

Explanation:

Step1: Define independent and dependent variables

The independent variable is the variable that is changed or controlled in an experiment. The dependent variable is the variable that is being measured or tested and depends on the independent variable.

Step2: Analyze Graph D

In Graph D, the color of the candy is the independent variable (it is the factor we are considering different values of), and the average number of candies in the bag is the dependent variable (the quantity that may vary based on the candy - color).

Step3: Analyze Graph E

In Graph E, the length of a person's leg is the independent variable (the variable we can consider as a factor that might influence something), and the sprint time is the dependent variable (the time it takes to sprint, which may depend on leg - length).

Answer:

For Graph D:
Independent Variable: Color of the candy
Dependent Variable: Average number of candies in the bag
For Graph E:
Independent Variable: Length of a person's leg
Dependent Variable: Sprint time