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Statistics and Probability Videos 134 videos

SAT Math 1.2 Statistics and Probability
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CAHSEE Math 2.2 Statistics, Data, and Probability II 174 Views


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Description:

Statistics, Data, and Probability II Drill 2 Problem 2. Based on the graph, which of the following is correct?

Language:
English Language

Transcript

00:03

Here’s a shmoopy question comin’ at ya…

00:05

The amount of time (in minutes) two brothers,

00:08

Ben and Bob, spent playing sports over the course of a week are shown in the following figure.

00:14

For the purposes of this question, we will consider soccer a sport.

00:20

Based on the graph, which of the following is correct?

00:23

And here are the potential options…

00:26

Can we read a graph? We’ll see...

00:29

We have to just go through the potential answers one by one.

00:33

A. “Over the course of the entire week, Bob spent more time playing sports than Ben.”

00:39

So clearly we’re gonna need to add the total amount of time spent by each to answer this

00:43

question – let’s just make a little table:

00:51

We can just add the numbers –

00:58

and boom - A is correct.

01:00

And really, we could have just looked at the graph…

01:03

…Bob smokes Ben for minutes practiced every day of the week except Saturday and only “loses”

01:07

by a small amount that day…

01:09

…so just a quick glance could have told us that A was our guy.

01:13

There’s not even a need to test the rest. We can save our energy.

01:16

In case we want to, you know… play soccer.

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