Which dot plot is bimodal (has more than one mode)?

• A. Plot C: values 1, 1, 1, 2, 2, 2, 3, 3
• B. Plot B: values 1, 1, 1, 2, 2, 3, 3, 4
• C. Plot A: values 1, 1, 2, 2, 3, 3, 4, 4
• D. Plot D: values 1, 1, 1, 2, 2, 3, 3, 3

Answer: (D)

Verified step by step guidance

1. Step 1: Understand the concept of 'mode' in a data set. The mode is the value(s) that appear most frequently. A data set can be unimodal (one mode), bimodal (two modes), or multimodal (more than two modes).
2. Step 2: For each plot, count the frequency of each unique value. For example, in Plot C, count how many times 1, 2, and 3 appear.
3. Step 3: Identify the mode(s) for each plot by finding the value(s) with the highest frequency. If there is more than one value tied for the highest frequency, the data set is multimodal.
4. Step 4: Compare the modes found in each plot. A bimodal plot will have exactly two values that share the highest frequency.
5. Step 5: Confirm that Plot D has two distinct values with the highest frequency, making it bimodal, while the other plots do not meet this criterion.