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AP Statistics Videos 32 videos

AP Statistics 1.2 Exploring Data
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AP Statistics: Exploring Data Drill 1, Problem 2. Which of the following is the best way to display this type of data?

AP Statistics 1.5 Exploring Data
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AP Statistics: Exploring Data Drill 1, Problem 5. Which pieces of information would we need to create this graph?

AP Statistics 2.3 Exploring Data
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AP Statistics: Exploring Data Drill 2, Problem 3. Which set of points, if put in a scatterplot, would show us a positive correlation?

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AP Statistics 2.3 Exploring Data 194 Views


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AP Statistics: Exploring Data Drill 2, Problem 3. Which set of points, if put in a scatterplot, would show us a positive correlation?

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Transcript

00:00

Thank you We speak with this in your calculator and

00:05

shmoop which set of points if put in a scatter

00:08

plot would show us a positive correlation and hear the

00:11

potential answers Hearts waver and let's go All right It

00:15

wants us to find which set a point shows a

00:17

positive correlation in other words as the independent variable increases

00:24

So does the dependent variable The best way to visualize

00:27

this thing is to one they could visual so let's

00:29

graphic the graph of the first set of data is

00:32

shown here and note that as thie x value of

00:35

the subsequent point increases so does the y values So

00:39

we know that there exists a positive correlation between these

00:42

three points will still look at the other sets of

00:44

points just to make sure that our answer is correct

00:46

Though graph of the second set of points has shown

00:49

here well we can see that this time the point

00:51

slope downward from the beginning and this is a negative

00:54

correlations the opposite of what we want next set is

00:57

shown here this time there's a slope of zero The

01:00

correlation is neither positive nor negative How about d again

01:04

this graph shows the horizontal correlation on lee this time

01:07

it's a larger wye valley which still doesn't make the

01:10

correlation posit Finally thiss graff has no correlation at all

01:14

the values move up and down without any pattern only

01:17

a has a positive correlation It looks like our answer's 00:01:19.999 --> [endTime] aye what

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