6th Grade Math Textbook, Progress

Use the double bar graph above.

1. How many more T-shirts than 2. On which day were the most T-shirts
   sweatshirts were sold on Monday? sold? the most sweatshirts?


2. Which day had the greatest number 4. On which day was there the least
   of total sales? the least number difference between T-shirts sales and
   of total sales? sweatshirts sales?


3. What can you say about the sale 6. How would you summarize the data
   of T-shirts from Wednesday to about shirts sales shown by the
   Friday? Explain your answer. graph?

Update your skills. See page 14.

Double Bar Graphs

9-11

The owner of Kim’s Shirts recorded in a

table the daily shirt sales for five days.

She then displayed the results in a

double bar graph.

A double bar graph compares two

related sets of data. Each set of data is

graphed separately, but on the same

grid. The key explains which set of data

is shown by each bar graph.

To make a double bar graph:


Draw horizontal and vertical

axes on grid paper.


Choose an appropriate scale for

both sets of data.


Label both axes. On the vertical

axis, mark equal intervals

beginning with 0. On the horizontal

axis, write the categories.


Choose your colors and make a

key to show what each color

represents.


Draw a bar for each value of data.


Write a title for the graph.

Monday 60 40

Tuesday 70 45

Wednesday 40 35

Thursday 55 40

Friday 80 60

Day T-Shirts Sweatshirts

Daily Shirt Sales at Kim’s

0

M T W

Day

Th F

20

40

Key: T-shirts

60

80

100

Number Sold

Sweatshirts

Daily Shirt Sales at Kim’s

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