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Exploring Data Videos 25 videos

AP Statistics 1.2 Exploring Data
219 Views

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 4.3 Exploring Data 174 Views


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AP Statistics 4.3 Exploring Data. We would love it if our linear correlation coefficient were what?

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Transcript

00:00

Thank you We sneak and here's your smoked You sure

00:05

Brought to you by the gym where you could burn

00:07

three hundred calories on the treadmill and then order a

00:10

four hundred calorie protein shake in the smoothie bar of

00:13

progress All right in a perfect world we would be

00:16

able to do is little work as possible and still

00:18

get awesome results if we draw a scatter plot of

00:21

the relationship between the number of hours we spend at

00:23

the gym in our cardiovascular health we'd love it if

00:27

our linear correlation coefficient were what and hear the potential

00:32

answers All right here It would be nice if you

00:35

could totally understand all these concepts that watching a single

00:37

one of our videos Well sadly we don't live in

00:39

that world You're gonna have to put up with the

00:41

work It's okay though uh feels good when your brain

00:44

sweats Just be sure your wife down your skull all

00:47

right She was questions asking about linear correlation coefficient that

00:51

our stuff it wants to know what number we'd ideally

00:54

be looking for if we wantto barely break a sweat

00:58

while we're getting our ticker into tiptop shape But really

01:01

this is just about knowing what a linear correlation coefficient

01:04

tells us All right Well if it's a positive number

01:07

we need to know that there's a positive correlation and

01:10

if it's a negative number we should know that the

01:11

correlations negative so far so easy Well we want the

01:15

most game by putting in the least effort so we're

01:18

looking for a negative correlation So his showers options a

01:23

b and e it comes down to other r equals

01:25

negative one are our equals negative point three and we

01:29

can't really see how it could be the second one

01:31

Usually when dealing with perfect or ideal anything in mathematics

01:35

it's all or nothing it's gonna come out the one

01:37

zero or negative one and never seem totally random number

01:40

like negative point three plus the correlation coefficient of negative

01:44

point three isn't the most reliable things Sure sometimes that'll

01:47

work in our favor and less effort will lead to

01:49

better help But sometimes a data point oh jiggle away

01:51

from that perfect linear downward trend and we'd actually be

01:54

healthier if we exercise a little more so yeah no

01:57

thanks Anyway the answer is c honestly as good as

02:00

it sounds wouldn't we miss the sense of accomplishment that

02:03

comes from working hard in achieving our goals Wait trade

02:06

all that in for a second in an ice cream

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