IASSC Certified Lean Six Sigma Black Belt (ICBB) — Question 31

What the major difference between a stem-and-leaf plot and a histogram?

Answer options

• A. A stem-and-leaf plot preserves raw data but a histogram does not.
• B. A stem-and-leaf plot is more explicit than a histogram.
• C. A stem-and-leaf plot is less explicit than a histogram.
• D. A stem-and-leaf plot doesn’t preserve raw data but a histogram does.

Correct answer: B

Explanation

The correct answer is B because a stem-and-leaf plot visualizes data while maintaining the original values, making it more explicit. Options A and D incorrectly state the data preservation characteristics of each plot type, while option C inaccurately describes the detail level of a stem-and-leaf plot compared to a histogram.