AP Statistics 4.5 Exploring Data

AP Statistics 4.5 Exploring Data. What can we conclude from the plot?

APAP Statistics
AP StatisticsExploring Data
Exploring DataExploring Bivariate Data
LanguageEnglish Language
Test PrepAP Statistics

Transcript

00:31

the three-peat sorry so you may be watching too much sports center alright [Men presenting sports center]

00:35

so first things first let's break down what this thing is telling us we've got

00:38

males on the left and females on the right calm down this isn't an orthodox [Guys standing on the left and girls on the right holding 'Dont' segregate us' signs]

00:42

wedding well the middle column tells us the first digit in the age of each

00:46

individual while each number to the right or left help us the second digit

00:50

in each person's age for example because there's no number in the middle column [Middle column of table circled green]

00:55

first row we can assume that there are three 9 year old males and one 8 year old male

01:01

and one 9 year old female then in the second row every age starts with a

01:06

one we've got males aged 13 12 11 11 and females aged 12 14 16 and so on a lot of [Man wipes sweat from his forehead]

01:14

them and we're running out of breath.... so now to our answer

01:18

choices...And we conclude that A female had fewer outliers than males well according

01:23

to this stem and leaf plot nearly all females have their first cup of joe

01:26

during their teenage years with some of those older ones being considered

01:30

outliers whereas with the boys they're all pretty spread out making it harder

01:35

to identify any of them as outliers in fact it's going to be harder to identify [Men wearing balaclava's over their face]

01:38

them at all as long as they are wearing those ski masks over their heads yeah

01:42

okay how about C; is the female distribution skewed left no just the

01:47

opposite with a bunch of apparently bleary-eyed stressed-out teenagers [Girl drinking a cup of coffee]

01:50

pounding the job out of the distribution is actually skewed right so we can

01:54

eliminate C.. Can we conclude that the male distribution is

01:58

symmetric no.. see how there are fewer males of the older ages yeah that tells

02:02

us there is no symmetry here so buh-bye D... what about E females drink more coffee

02:07

than males...all we're being told here is the ages at which people [A restroom with a linear graph]

02:12

take their first sip, we have no idea whether they try it once they are done-zo

02:18

or if they're suddenly hooked for life, so E aint it no the only thing we [Girls dressed as zombies]

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know for sure is B more males have the first cup of coffee as a preteen than

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did females, right here 4 guys one gal answer B.. done well there you go some

02:34

free marketing research for you starbucks, you're welcome [Zombie man and girl chase a starbucks employee]