Question Video: Verifying the Range of a Set of Data Represented on a Line Plot Mathematics • Third Year of Preparatory School

Video Transcript

The graph shows the weights, in kilograms, of emperor penguins at a zoo. Is the range of the weights 24 kilograms?

The range of any data set can be calculated by subtracting the smallest value from the largest value. As the weights on the line plot are already in order, we can see that the smallest value is 23 kilograms. The largest value is 49 kilograms. We can therefore calculate the range by subtracting 23 from 49. 40 minus 20 is equal to 20, and nine minus three is equal to six. Therefore, 49 minus 23 equals 26. The range of values of the emperor penguins is 26 kilograms. This means that the answer to the question “Is the range of the weights 24 kilograms?” is no.