This product is also available at a discount as a part of my Data and Graphing Lesson and Activity Bundle found here: http://www.teacherspayteachers.com/Product/Data-and-Graphing-Lesson-and-Activity-Bundle
This folder contains two data analysis assessments with answers. These would be appropriate for pre-assessments, formative assessments, and/or post assessments.
Graphs included are bar graphs, line graphs, pictographs, line plots, and Venn diagrams.
The first assessment covers reading graphs and the second assessment covers vocabulary and graph types.