Question

The dot plots below show the scores for a group of students for two rounds of a quiz:

Which of the following inferences can be made using the dot plots?

There is no overlap between the data.
The range of each round is the same.
Round 1 scores are higher than round 2 scores.
Round 2 scores are lower than round 1 scores.

Answer 1

We can see that round 2 has a higher proportion of people who got 5 instead of 4, so round 2 scores are higher. However, this is not one of the answer choices.

Therefore, let’s look at some other aspect of the data. Notice how both data sets have the lowest value 4 and the highest value 5 which means both have the same range 5-4 = 1.

Answer 2

TY!!!