Independent vs Dependent Variables

Independent vs Dependent Variables

Review

Dependent Variable vs Independent Variables

Example:

Sarah is participating in a walkathon to raise money for local literacy programs. The amount of money Sarah will raise depends on the distance she walks.

m = the amount of money Sarah will raise (DEPENDENT)

d = the distance Sarah walks (INDEPENDENT)

Multiple Choice

Identify the dependent variable:

The cost of apples (c), and the number of pounds you buy (p)

• p = dependent

• c = dependent

Multiple Choice

Identify the dependent variable:

The number of minutes (m) spent talking on the phone, and the amount of the cell phone bill (b)

• m = dependent

• b = dependent

Multiple Choice

Identify the dependent variable:

The number of pages (p) read, and the time (t) spent reading.

• p = dependent

• t = dependent

Multiple Choice

Name the DEPENDENT variable from the table below.

• minutes

• bubbles

Multiple Choice

Name the INDEPENDENT variable from the table below.

• words

• minutes

Multiple Choice

Carey and Justin are raising money to purchase books for their school's library. The more money they raise, the more books they will be able to purchase for the library.

m = the amount of money Carey and Justin raise

b = the number of books Carey and Justin will be able to purchase

Which of the variables is dependent?

• m

• b

Multiple Choice

Sarah is bringing treats to her elementary school class on her birthday. The number of treats she brings in is based on the number of students in her class.

t = the number of treats

s = the number of students

Which of the variables is independent?

• s

• t

Multiple Choice

Sophie earned $1 for every she got an A on her report card.

m = money

A = A on report card

The dependent variable is:

• m = money

• A = A on report card

Multiple Choice

A movie ticket is $8.50 per person. What is the independent variable?

• Cost

• Number of people

• Time

• Cinema

Multiple Choice

Time is ALWAYS...

• Independent
• Dependent
• Money
• Not a variable