Worked examples
Two examples
Example 1
A dot plot has 3 dots over 4, 5 dots over 5, and 2 dots over 6. How many values in all?
- Each dot is one value: 3 + 5 + 2.
Answer: 10
Example 2
Same plot. What is the mode?
- The tallest stack is over 5.
Answer: 5
Where this is taught: Quiz 38: Reading Graphs, “Dot plots: the same job, when the numbers are few”
The drill
Ten problems
This drill also has challenge problems. They use the same skill, set up the way the GED test sometimes sets up a problem, so that it looks new at first.
How many:
Type each answer, then press Check my answers at the bottom. Commas in large numbers are fine.Write each answer on the line. The answer key, with the reasoning, is on the last page.