yego.me
💡 Stop wasting time. Read Youtube instead of watch. Download Chrome Extension

Interpreting line plots


2m read
·Nov 10, 2024

We're told that the weights of 11 different babies are recorded in the line plot below, and we see there's one, two, three, four, five, six, seven, eight, nine, ten, eleven data points; each one represents a different baby whose weight is recorded. Each weight was rounded to the nearest one-eighth of a pound.

All right, then they ask us what is the difference in weight between the two heaviest babies. So, pause this video and try to figure that out before we work through it together.

All right, now where are the two heaviest babies? So this one out here, this is the heaviest baby. And what is its weight? Let's see, its weight is right over there. And what is that number or what is that weight? So this is 9, and this is 10, and we have one, two, three, four, five, six, seven, eight equal spaces. So each of these is an eighth.

So this is nine and one, two, nine and two-eighths. So this one is—let me write this—this is nine and two-eighths. Another way to think about it is two-eighths is the same thing as one-fourth because if you think about it as one, two, three, four equal spaces, this is also nine and one-fourth of the way to ten. So this is the same thing as nine and one-fourth.

And then what's the second-heaviest baby? Because we want the weight difference between the two heaviest. So the second heaviest baby is right over here, and we know that it is eight and a half pounds.

So what we really need to do is figure out what is the difference between nine and two-eighths, or nine and one-fourth, and eight and a half, right over here? So we could set this up as a subtraction. This is going to be nine—and let's call it nine and one-fourth—minus eight and a half.

We can actually use these measurement scales or you can even do this as something of a number line to help us think about this. The difference is this length right over here, and we could think about it in terms of eighths because each of these hash marks is an eighth. So one-eighth, two-eighths, three-eighths, four-eighths, five-eighths, and six-eighths.

So this is equal to six-eighths. We could also think about it in terms of fourths, so this is one-fourth, two-fourths, and three-fourths. So this is equal to three-fourths.

So what's the difference in weight between the two heaviest babies? It is three-fourths of a pound.

More Articles

View All
Worked example: Calculating the mass of a substance in a mixture | AP Chemistry | Khan Academy
We’re told that a 0.450 gram potassium supplement contains 22 percent potassium by mass. The potassium is present in the supplement as potassium chloride, which has a molar mass of 74.55 grams per mole. How many grams of potassium chloride are in the pota…
Philosophies That Shaped Millions
Know how it goes: one day we’re born, one day we die. Everything that happens in between we know and understand, but everything that happened before and will happen after we know nothing about. As a result, it’s really difficult to say what exactly the me…
Growing Up in the African Wild : Beyond ‘Savage Kingdom’ (Part 1) | Nat Geo Live
(Dramatic orchestral music) - Imagine you’re out in Africa. It’s night-time, you’re sleeping in the back of an open vehicle, and it’s so hot that you have no clothes on and you’re still sweating. All you can hear is the distant call of a hyena and an impa…
5 Steps To Getting Rich In Your 20's
What’s up you guys? It’s Graham here. So there’s a lot of videos out there about how to get rich in your 20s, and if you just do a search on YouTube for how to get rich, there’s literally a new video posted every single hour. If you think I’m exaggerating…
How Houdini DIED (in Slow Motion) - Smarter Every Day 108
Hey, it’s me Destin, welcome back to Smarter Every Day. So did you realize that Harry Houdini was the first person to fly an airplane in Australia? I didn’t either, that’s crazy. In fact, this guy’s whole life was interesting because he lived it out daily…
Use the Force! | Explorer
Innovator Ton Lee is changing the way we study the brain. So that will feel a little wet on your head because this is the nature of this system. Lee’s revolutionary headset records our brain waves and translates them into meaningful data that’s easy to u…