8.01 Identifying dependent and independent variables
Consider the following variables:
- Number of ice cream cones sold
- Temperature outside \left(\degree \text{F}\right)
State the independent variable.
State the dependent variable.
Which variable affects the other?
Consider the following variables:
Ticket sales
Revenue from a show
Which variable affects the other?
State the dependent and independent variables.
For each pair of variables, state whether one variable has a direct effect on the other. If yes, state which variable affects the other.
Arm length (inches), Weight (pounds)
Temperature (\degree \text{F}), Distance from the equator (miles)
Weekly income, Number of friends
Time of travel (minutes), Distance covered (yards)
Age (years), Time spent watching television
Time spent working, Wages earned
Time spent to finish a novel, Number of pages
Marital status, Film preference
Height (centimeters), Number of children
Hair Length, Gender
Number of pets, Time spent caring for pets (hours)
Time spent training (hours), Athletic performance
In a study on houses, it was found that an independent variable was the amount of money spent (in dollars) on renovations. What is most likely to be the dependent variable?
A study was performed to find the relationship between the number of soft drinks consumed per week and the waist circumference of students.
Which variable is the independent variable?
Which variable is the dependent variable?
A kite can rise to a height of 161 \text{ m} when the wind is blowing at 6 \text{ km} per hour and to a height of 322 \text{ m} when the wind is blowing at 12 \text{ km} per hour. State the dependent and independent variables.
In a study on basketball players, it was found that the dependent variable is the number of three-point shots scored. What is most likely to be the independent variable?
For the following sets of axes, state whether the variables have been placed in the correct position:
The scatter plot shows the relationship between sea temperature and the amount of healthy coral:
Which variable is the dependent variable?
Which variable is the independent variable?
The graph shows the height of a ball after it is dropped off the side of a building:
Which variable is the dependent variable?
Which variable is the independent variable?