Lesson 5: Calculating Measures of Center and Variability
Cool Down: Calculating MAD and IQR
• 5
• 18
•6
18
13
I
mean: 12
1. Find the mean absolute deviation for the data.
2. Find the interquartile range for the data.

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.

What is the area of the triangle 10 13 12

What can each term of the equation be multiplied by to eliminate the fractions before solving? x – + 2x = + x 2 6 10 12