To determine which two lengths would have the same number of dots in a line plot, we need to look at the frequency of each string length based on the provided data:
- 3 1/2 (3.5) occurs twice
- 2 3/4 (2.75) occurs three times
- 4 occurs twice
- 3 1/4 (3.25) occurs once
- 1/2 (0.5) occurs once
From these frequencies, we can see that:
- Length 3 1/2 appears 2 times
- Length 2 3/4 appears 3 times
- Length 4 appears 2 times
- Length 3 1/4 appears 1 time
- Length 1/2 appears 1 time
The lengths that have the same number of occurrences (dots) are:
- 3 1/2 and 4 (both appear 2 times).
Therefore, the correct response would be: 4 and 3 1/2 (3.5).