Solving Problems with Bar Graphs Dot Plots & Circle Graphs

T.i.P.S.

Students should use their previous knowledge of bar graphs and dot plots to solve problems based on data from these graphs involving percents. Circle graphs also known as pie graphs, are new form of graphs for seventh graders. 

Example

Jimmy asked his friends in his lunch period what their favorite pizza toppings were. The graph shows these results.

What is the approximate difference in the percentage of people that liked pepperoni on their pizza and the percentage of people that only liked cheese pizza?

Hint
Possible Solution

TEKS

Readiness Standard 7.6 Proportionality. The student applies mathematical process standards to use probability and statistics to describe or solve problems involving proportional relationships. The student is expected to:
(G) solve problems using data represented in bar graphs, dot plots, and circle graphs, including part-to-whole and part-to-part comparisons and equivalents

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