Measure I Variability
3. A single number that shows how data are spread or clustered

What is the range of the relation in the table below? x y –2 0 –1 2 0 4 1 2 2 0

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. after tax the total is 45.99. what percentage of the subtotal is the total?

Andy has $310 in his account. each week, w, he withdraws $30 for his expenses. which expression could be used if he wanted to find out how much money he had left after 8 weeks?