Interpreting Bar Graphs in 7th Grade Math

The video tutorial introduces bar graphs, explaining how they represent categorical data using bars. It uses a bar graph from Gigi's grooming shop to demonstrate how to read and interpret data, calculate percentages, and understand ratios. The tutorial also includes exercises on identifying dog breeds by percentage and evaluating true or false statements about the data.

What does a bar graph use to represent categorical data?

• Dotted lines

• Pie slices

• Scatter plots

• Solid bars

How many poodles were groomed according to the bar graph?

• 8

• 12

• 20

• 25

What is the total number of dogs groomed?

• 100

• 50

• 80

• 70

What percentage of the dogs groomed were poodles?

• 25%

• 15%

• 30%

• 10%

What percentage of the dogs groomed were pugs?

• 10%

• 5%

• 25%

• 20%

What is the ratio of pugs and Yorkies to Malteses?

• 1:1

• 2:3

• 4:3

• 3:4

Which breed represents 15% of the total dogs groomed?

• Malteses

• Dachshunds

• Poodles

• Schnauzers

Is the statement 'The ratio of pugs to Malteses is 2 to 3' true or false?

• True

• False

• Misleading question

• Cannot be determined

Are dachshunds, pugs, and Yorkies equally represented?

• Yes

• No

• Data is insufficient

• Misleading question

Do schnauzers represent 5 out of 16 of the dogs being groomed?

• No

• Yes

• Misleading question

• Data is insufficient