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

Interpreting plotted points


2m read
·Nov 11, 2024

The graph below shows the relationship between hours of exercise and hours of screen time for a group of five friends on Thursday. So if we look over here, we can see that here on this horizontal axis, when we're going from the left to right, it says hours of exercise: so half an hour, 1 hour, 1 and a half hours, 2 hours, 2 and 1 half hours.

Then here it shows hours of screen time. For example, it looks like Le Yang did zero hours of exercise, did no exercise, and spent seven hours in front of a screen. Not something that I would recommend. It looks like Cava spent half an hour; had half an hour of exercise on Thursday—this is all describing what happens on Thursday—and had 5 and a half hours of screen time. You see that right over there?

We could keep going with all the other data points, but let's see what they're asking us. What is the meaning of the point marked Maxime? I think that's how I would pronounce that. So, Maxime is right over here, and it looks like this is the point (1, 4) because our horizontal coordinate right over here is 1, and then our vertical coordinate is 4.

So point (1, 4) is the hours of exercise, so Maxime's exercise is 1 hour—1 hour of exercise—and they spend 4 hours in front of a screen on that Thursday: 4 hours screen time.

All right, so let's see which of these choices say that. Let's see, it is: Maxime had 1 hour of exercise and 4 hours of screen time. Yep, this looks exactly right! If you just wanted to check the other ones: Maxime had 2 hours of exercise and 8 hours of screen time—that would put them way up here, and that's not where the point was, so we'd rule that out.

Maxime had 4 hours of exercise and 1 hour of screen time. Four hours of exercise is not even on this; we’d have to go off the screen, so we’d rule that one out. Maxime had 5 hours of exercise—once again, that’s not even on the screen here, so that is so we can rule all of them out.

This third choice, they’re actually trying to confuse you because they’re swapping the hours of exercise and screen time: Maxime has 1 hour of exercise, 4 hours of screen time—not 4 hours of exercise and 1 hour of screen time!

More Articles

View All
Example identifying the center of dilation
We are told the triangle N prime is the image of triangle N under a dilation. So this is N prime in this red color, and then N is the original; N is in this blue color. What is the center of dilation? And they give us some choices here: choice A, B, C, or…
Introduction to t statistics | Confidence intervals | AP Statistics | Khan Academy
We have already seen a situation multiple times where there is some parameter associated with the population. Maybe it’s the proportion of a population that supports a candidate; maybe it’s the mean of a population, the mean height of all the people in th…
What we've learned in 100 Episodes - Smarter Every Day 100!!
[party whistles] Hey it’s me Destin. Welcome back to Smarter Every Day. A very special Smarter Every Day. The 100th episode, but not only that, it kind of coincided with a million subscribers, so thank you very much for your support. And because of that, …
Alien Oceans | Explorers in the Field
(peaceful music) When I was a kid looking up at the stars, I really always wondered how did we get here and are we alone? My name is Bethany Ehlmann. I’m a professor of planetary science at Caltech and Research Scientist at the NASA Jet Propulsion Labora…
Visually assessing standard deviation | AP Statistics | Khan Academy
Each dot plot below represents a different set of data. We see that here. Order the dot plots from largest standard deviation (top) to smallest standard deviation (bottom). So pause this video and see if you can do that, or at least if you could rank thes…
Why Most People Will Never Be Rich
Some people will never be rich, and no, it’s not about where you grew up, who your parents are, your gender, or the color of your skin. Let us explain. Welcome to alux.com. These 100 dots are meant to symbolize the world’s population. From a quality of l…