Question

The dot plot shows a random selection of commute times in two cities.

Answer 1

The commute times are shorter and more predictable for City B.

Explanation:

First, let's find the center of each set of data. We don't have to actually measure it, we can just approximate. For City A the center is around 30 minutes. For City B the center is around 15 or 20 minutes. We can clearly see that City B commute times are generally shorter than City A.

Next, let's find which city is more predictable. We can figure this out by looking at each city's range. City A has a range of 55. City B has a range of 35. Because City B has a smaller range, we can say that City B's commute times are more predictable.