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Playlist PSAT® Math 45 videos

0
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PSAT 1.21 Math Diagnostic 177 Views


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Description:

PSAT 1.21 Math Diagnostic. The map above shows the electoral votes for the western part of the United States. Which of the following statements is true?


Transcript

00:00

Thank you We sneak And here's your shmoop du jour

00:05

Brought to you by alaska and hawaii whenever either of

00:09

them stays at a hotel there Never allowed to partake

00:12

of the continental breakfast All right check out this math

00:14

right there See alaskan lying there All right The map

00:17

above shows the electoral votes for the western part of

00:20

the united states Which of the following statements is true

00:23

and new land I mean senator range Another one of

00:29

those questions where there's only one truth teller and the

00:32

other three answer choices are liars liars with their pants

00:35

on fire No other way to approach a problem like

00:38

this Then teo take them one by one And fact

00:41

check him in order We'll start with option A mean

00:43

number of electoral votes is the same as the median

00:47

All right quick refresher on what those two words mean

00:49

incase we in conveniently forgot I mean is the same

00:53

as average where we total up all the values in

00:56

a data set then divide them by the number of

00:59

items The median is simply the middle of value in

01:03

the data set when the values are arranged from high

01:06

to low So to see if a is bogus or

01:09

not we're gonna have to write out all the state's

01:11

electoral votes starting with the small fries and going all

01:15

the way up to the big cheese You must be

01:18

getting close to lunchtime All right we'll hear those values

01:20

started from low to high few threes couple for three

01:24

five seven and nine a ten and eleven and a

01:28

bingle fifty five try to keep the bragging to a

01:31

venom of their california Totalling all these we get one

01:35

hundred twenty for which divided by thirteen The number of

01:38

states we just covered comes out to around nine and

01:40

a half which is not a match for the media

01:43

in which in this case is five So option a

01:46

can take a flying leap into the pacific ocean What

01:48

about beat Fifty percent of the state's have seven or

01:51

fewer electoral votes Let's look back at our order list

01:56

No way can easily see just by eyeballing the sucker

01:59

that there are only a few states with more than

02:02

seven votes while the clear majority has seven or fewer

02:06

buil d fall short as well Art option b is

02:09

the range of electoral votes Fifty eight Well the range

02:12

is the difference between the smallest and the largest value

02:16

In a data set in this instance the difference between

02:19

fifty five and three fifty two not fifty eight Like

02:24

the test question making their added and set us attracted

02:27

just tricky The order of our answer D the correct

02:33

answer is c The media number of electoral votes is

02:36

five Well yeah we figured that out way back when

02:40

you know when we eliminated off today so see it

02:42

is we're hawaii and alaska They get hardly any electoral

02:46

votes and they never get invited to any of the 00:02:49.065 --> [endTime] cool parties

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