Video: Interpreting Data in a Scatterplot

A medical examiner in a school created the given scatterplot to examine the relationship between the heights and weights of nine different students. What is the weight, in kilograms, of the tallest student?

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Video Transcript

A medical examiner in a school created the given scatterplot to examine the relationship between the heights and weights of nine different students. What is the weight, in kilograms, of the tallest student?

The location along the 𝑥-axis gives the height in centimeters of a certain student. And the location along the 𝑦-axis gives the weight in kilograms. If we consider this first point, it’s located at 150 along the 𝑥-axis and 60 along the 𝑦-axis. This student has a height of 150 centimeters and a weight of 60 kilograms. We want to know the weight of the tallest student. The tallest student will be the student with the largest height. This is the student that’s furthest to the right along the 𝑥-axis. We find that student here. We know that this point represents the tallest student. But what we’re looking for now is how much does the tallest student weigh. And so we need to consider the location of this point along the 𝑦-axis.

Because this point is located along the 𝑦-axis at 70, the tallest student is at the location 190, 70 and has a weight of 70 kilograms.

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