igorstrawhiskey
182726
2238
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math
Jul 16, 2022 6:00 AM
igorstrawhiskey
182726
2238
39
imptastick
This is why we shouldn't let pharmaceutical companies advertise to the general public, lots of barely functional meds with side effects
ayakin989
I mean, I know this, but lot of other people don’t.... so I always assume it means what other thinks it means.... not what I know it means
RealScienceMan
This isn't true, it can mean either. This is just a linguistic edge case that the Tumblr person is making up a standard about.
RealScienceMan
Maybe we should have a standard for it but we don't, really people should just think more carefully about how they talk.
Alban3000
When you go from 40% to 60% alcohol in a drink, you are getting 50% drunker.
eagleliser
It bothers me that a % lower than 100 can never be more... it can only be lower... yet 80% more seams to mean 180% and 180% means 280% etc.
Ptrik
If this math somehow seems a new concept to you, you either weren't paying attention in junior high or had an incompetent math teacher
Sonicschilidogs
Little of column B, mostly column A I'd say
MisuseOfLiterally
Its hard explaining a simple concept to people sometimes
Slugsie
This a a pet peeve of mine. These quoted percentage increases are useless without knowing your underlying risk. Marketing abuse this. Shame!
DukeDarkwood
This is essential to teaching GW2 players how Magic Find works.
Marine0311
I have such a hard time explaining this concept to people.
roborg
The hard part is “% of a %”. Think of a 10% like “items”. 10 items are good. It increases by 80%. 80% of 10 is 8. 18 items are good.
physicsisabitch
This makes me want to rub one out 80% harder. Translate that for us.
bobbycottle
You need 1 more inch.
SarahInPDX
Youhavinagiraffe
This is why phrasing risks as "1 in 1000" rises to "2 in 1000" is the best way of doing this... assuming you want to inform and not provoke
TsubakiTragic
87% of all internet facts are bogus.
RealScienceMan
This one included, this isn't real this is Tumblr trying to impose a standard on a linguistic edge case.
CandidGamera
Not how that works. "Increase by" with percentages is ambiguous whether it refers to an additive or multiplicative increase. The point is ->
CandidGamera
<- the vernacular phrase is simply unsuitable to clearly verbalize math when it comes to percentages.
spartanatwork
When people were saying they'd be ok with 2% death from covid I would ask how they'd feel about 7million people dying in the US.
Vermifuge
A bowl of cereal is not a complete breakfast nor does it add to a complete breakfast. The pictured breakfast was complete with or without it
AnIPAisMyFavorite
But it was always touted as "part of this complete breakfast"
Vermifuge
Which wasn't a lie. It was physically part of the pictured breakfast. It just didn't add any value to complete it or not.
Vermifuge
Idonotkillpeoplethatismyleastfavoritethingtodo
Is this not common sense everywere?
justinm2424
dooremouse
I was starting to get disappointed that I wasn't seeing this. lol
HangingOnTheEdgeOfTomorrow
I learned this from Warframe. You're not going to turn a low crit weapon into a red machine just because you have a high crit riven.
Twinklepot
I missed two years of primary school. I think that this is why some of my basic math is sketchy. Other more complex stuff is fine.
blainetog
Nah, everyone sucks at statistics. Politicians and corporations rely on that.
kawraith
Most people can grasp the basics just fine. However Interpreting statistics requires context. People just suck at critical thinking skills.
DysgraphicProgrammer
I was sick for the first 2 weeks of trig and never quite got it after that.
YesSorryIAmBack
Same!! Everything else I was really good at, but being at the hospital during intro to cos, sin, tan ... I'm FUCKED
Twinklepot
This is it. If you miss it first time around you are snookered
WilliamHuskerAdama
This is pretty basic stuff, but America has been dumbed down for generations
fitsu
I play APRGS. If there’s one thing I understand it’s additive vs multiplicative
MrLeville
People are even worse at math than I thought
MyBackstory
Path of Exile gave me the master course in this.
EntropyReign
"Path of Exile is a more multiplier to math knowledge, not increased" -GGG, probably
demondied1
Still sane exile?
Mavor
I went to the comment section to mention this. Good to see you here, fellow exile.
Sigge1981
I'm terrible at math. All i know from PoE is that "more" is better than "increased" and "less" is worse than "decreased"
Sigge1981
Frigging change to Controlled Destruction...
JCBalance
And Runescape is good at teaching probability.
Ttoften
The amount of people who doesn't know basic math is scary
IHateApostrophes
Same for basic grammar.
Ttoften
Well hopefully math is the same for every country. Language isn't...
JackYouMagnificentSoB
it's about 80% less than it used to be
Tjitso
It's not that complicated. It's just that nobody explained it. Education is important.
RealScienceMan
Well it kinda is complicated, because unlike what Tumblr person said there's not a standard here and it does logically make sense both ways.
RealScienceMan
If I have 10 nouns and increase it by 80 nouns I have 90 things, why should it operate differently if the nouns are percent.
RealScienceMan
But also if I have 10 nouns and increase it by 80 percent I have 18 nouns, why should it work different if those nouns are percent?
ReneDeGames
anyone who has taken a course that used percentages got it explained to them, at best they can't generalize, more likely, they forgot.
v01dstar
It's not *at all* complicated. But shockingly many people are mathematically illiterate. Which is a fancy way of saying "stupid".
vorodar
I'm pretty sure it gets explained at school.
CptJohnYossarian
The people that whinge in school "When will we ever use this?" are the same people fooled by maths this simple.
totallyNotRonJeremy
To be fair, I actually learned these stuff while making build in Diablo 2.
Emergencymeme
My Man!
jridley
It baffles me that people don't think they'll ever use algebra. EVERYTHING uses algebra. Making change is algebra.
RealScienceMan
Because they're kids, and the teacher didn't do their job and answer the "when will we use this?" question
AgainstMethod
Algebra courses are full of word problems describing all the ways adults need it to function. "When will we use this" isn't the problem
GravyEducation
What up Yossarian. My favorite book
IHateApostrophes
Yoyo!
RealScienceMan
1) This isn't math it's English. 2) "When will we use this" is a question that should be constantly asked and always answered.
degenerateloser
To be fair, if you feel like something isn't worth learning; you're probably not going to learn it regardless of being taught it.
thricebakedxyz
I enjoy math, only after college courses. Not in Jr./High school.
AgainstMethod
What bothers me are the ones who wear the "not a math person" label as an excuse to avoid thinking about basic arithmetic like this.
zeusdemigod131
I don't remember learning this in math. I remember learning how to find percentages and multiply by them. Not this trick though
GabbyJayYay
10% of 80 = 80% of 10
MioTaalas
Because percentages are just a multiplication or division. 50% of x is the same as x*0.5... And multiplication can be swapped around.
DykeReeve
That's 8. You're welcome.
sweetnaivety
I don't know if it's just because I'm a gamer, but I use algebra all the time
Morsalbum
literally. games with custom builds has you doing all forms of fucking calculus lmfao. the diablos, monster hunter. "if X gives 10% crit and
Morsalbum
Y gives 5% raw attack, which one actually ends up being better in this current moment of the game" -> do 1 more quest and get a new item lol
Morsalbum
literally EVERYONE who has played diablo 3 has experienced this with the red and green gems for weapons
RoseDandy
Ah yes how dare children not understand something will be important later, god forbid the teachers explain why.
CptJohnYossarian
It's not about not understanding at the time of learning it; it's a complete failure to value knowledge or recognise it's utility.
MeanMisterClean
That's kinda what they meant. They're implying it's a teacher's job to explain why this info is important, and that they failed to do so
DoctorCoktopus
The concept of "it doesn't have value to me now but I should still appreciate and respect others valuing it" should start sooner than that.
Paradox1111
They are called building blocks, some kids think they are above it, even though it's basic..we give them factory/warehouse/construction jobs
Tengenstein
Fuck you if you build houses without math.
dangermess
And they get fired because they never learned the building blocks. ?
v01dstar
It's weird how proud people are of not knowing math. https://xkcd.com/1050/
VodkaReindeer
It'd probably be a good idea to spend some of those lessons we spent on calculus on simpler stuff like this. To make everyone get it.
RealScienceMan
Here's the thing, the Tumblr post just made up a standard, they're not right, they're not wrong either, it's just a linguistic edge case.
LinkHouseMan
The problem is some of us paid attention, got it the first time, and moved on to calculus. We need to hold people back until they get it.
VodkaReindeer
Exactly!
dasklaus
Yeah. Percentages and fractions are really everywhere, if you don't understand those you're illiterate, but with math.
GoblinShaper
Honestly yeah. I have such a hard time with math and have to have basic stuff explained to me. Brain no likey numbers magic
Dragongirl7256
Same. But you also seem smart enough to deffer to people who actually DO understand math; like me so I think we're good?
dasklaus
If you know your limitations, I think that's fine. There's other things to life. It's only bad if you have confidence in ignorance.
Phayze87
I am also bad at math, thats why I became a tradesmen. Many of them require low education starting points. Welder for example - Gr. 9 to >
Phayze87
Start the apprenticeship. Bro, there's so much fucking math involved i can't believe i passed in the top 5 of my class. I hate math >:(
CptJohnYossarian
"innumerate"
dasklaus
Thanks!
Arkandos
Coun't
CptJohnYossarian
PacManDreaming
I asked when we'll ever use geometry proofs IRL. Haven't seen a geometry proof or a reason to use one, in the 35 years since that class.
RealScienceMan
The main reason you learn the things you do in school is to teach the skills and that you might use it in other things.
PacManDreaming
It was one of the few things that was absolutely worthless, to me. It was just busy work. I went on to major in microbiology, so....
RealScienceMan
Do you use step by step logical reasoning? Because that's the skill that was being taught.
PacManDreaming
Yes, but I didn't learn that from geometry proofs. My brain really isn't wired for math. Just had to accept that I was just gonna scrape(1)
IHateApostrophes
Geometry proofs are a good introduction to logical reasoning, used a lot in medicine.
PacManDreaming
The only thing they taught me, was that math wasn't a good career choice, for me. And I ended up majoring in microbiology.
Morsalbum
yeah this is what 99% of these people don't understand. a LOT of the stuff you learn is never actually used, its just vital for brain develo
PacManDreaming
Headache development is more like it. Sometimes stuff is just mindless busy work that wastes time and has no benefit. Proofs are proof.
IAmZephyre
And try explaining percent vs. percentile. ??♀️ What a mess.
quackersforcrackers
fuckthisishard
My 6th grade principal didn't know this. Got an award for 99th percentile on standardized tests and he said 'Almost 100%, maybe next year.'
Boomboomyeahshaketheroom
I’m gonna pray that was just your principal making a dad joke.
quackersforcrackers
That's when you realise why they make answer sheets
RealityIsOftenDisappointing
Could have been a brain fart, could have been stupid, or maybe, just an under appreciate burn.
Deoxyribonucleicacidwashedgenes
I'd like to believe kind of a dad-joke...
ArcaneConjecture
This is legit. Next year you will get the highest score and beat 100% of the other kids instead of just 99% of them. Get to work.
Yay295
You can be in the 100th percentile due to rounding.
nesurame
how would you do such a thing? score the highest out of 101 students?
ddbrown30
The 100th percentile is the highest value in the list. Whoever got the best score, assuming no ties, would be in the 100th percentile.
squidPilot
try Americans learn the correct order of operation of what goes first with *+-/()
MrKnowItAll1903
( . )( . )
Newlife5454
Shove it up your PEMDAS
HappyLittleIdiot
The problem with such 'memory rules' is that dumb people will follow them blindly, not realizing that the M&D are equal, as are A&S
HappyLittleIdiot
And if you know what you are doing, it is often easier to do exponents before parentheses, though you obviously need to do it correctly
BishlamekGurpgork
As an American, I want to tell you can shove your assumptions, but I also can't say you're wrong.
IAmZephyre
Wait... Order of Operations is country-specific?
BishlamekGurpgork
There is an Arabic notation with right to left, but I don't think it's actually used. Archaic maybe?
BishlamekGurpgork
Still PEMDAS, just right to left in absence of clear priorities.
Kailhun
It was. The Dutch system used to be different.
kibje
Historically the sQuare root was done after the MD part and didn't belong to the E in the Netherlands something like PEMDQAS but it changed
squidPilot
no. But Americans tends not to know how to do it
itsokimaussie
That's because not long after they learn it in school, they get shot and killed.
sweetnaivety
we learned PEMDAS
AbstractArtemis
Pretty broad brushstrokes there, squidpilot. You got a source on that? Sounds like a stupid anecdotal opinion parading as an intelligent one
fuckthisishard
I think it's generational. My mom insists she learned it strictly left to right other than parentheses.
Boomboomyeahshaketheroom
No, she just didn’t understand it and is doubling down.
GuyWithDog
My 79yo father knows the correct order. He was not specifically awesome taught
BeeWoman
Wait that's not so hard is it?
BishlamekGurpgork
It's not hard, but it often needs to be explained.
dj5897
That’s what she said!!!
IAmZephyre
Percent vs. Percentile are concepts I'm often having to address because I work with teachers! Some think percentile is just fancy %. Scary.
Kuvajainen
Oh. Oh no.
BeeWoman
That is painnnful, damn
SuicidalThrillbillyturnedLunaticChillbilly
Don't blame them. Blame your funding. Blame the parents. Children are born blank slates and they are products of their environment. I (1
SuicidalThrillbillyturnedLunaticChillbilly
feel bad for kids and teachers these days. Teachers get paid shit money to help shape the futures of kids that are born into a world (2
SuicidalThrillbillyturnedLunaticChillbilly
where most of society doesn't care about their future or education. You people need better pay and better funding. I wish you the best! (3
CptJohnYossarian
"I graduated in the top 98th percentile of my school in maths" as an example
chiefrunswithscissors
So that doesn't mean that if there were 100 people you were the basically at the top?
vonHoopla
I think it means he could be anywhere from 98 to 1
BeeWoman
If you were in the 98th percentile 98 people did worse or the same. If you are in the top 98th percentile, 2 people did worse or the same.
thisisjunk
But, when they say "percentage points" they literally mean changing the percentage. Increasing 10% by 80 percentage points yields 90%.
datester35
You can also say a relative increase vs an absolutely increase. Percentage points = absolute
Windharp
I just learned that this is the same in English as it in in German. Thanks. "Prozentpunkte" literally translates to percentage points.
voidiniser
Playing arpgs helps a lot to grasp this :D
mieper3
So basicly what you're saying is playing rpg's should be mandatory in school? okay I agree!
LeroyShabazAli
This is not how Terrence Howard explained this to me at all
DaveSamsonite
My pet peeve is when in ads they say something costs "three times less," as if people are too dumb to understand «one third the cost »
rusrsdude
Words, visuals, and representation in general matter a lot in ads. It's a mind game. 3x less is better sounding than 1/3.
viila
Three times less sounds more impressive. That's why they use it.
DaveSamsonite
It’s SOOO overused.
beziot
Tbf people are dumb, for various reasons. A lot of us aren't able to count because education, born in the wrong country, shitty parents etc.
DaveSamsonite
Bad schools, ignorant parents, social media and video game obsession, etc
urukhello
You can get even more confusing in finance where “basis points” are often in one hundredths
ImAnActionBirb
So if something increases by 100 basis points…
whitecheddarismyrappername
the written math equation isn’t as confusing as terminology in most cases
jamesn86
“Often”? You mean always…
KipperFillets
I was going to say that too.
TheS4ndm4n
A basispoint = 1/100th of a percentagepoint.
GravyEducation
Let's not bring finance into this. We'll all end up confused and somehow poorer than we were 5 minutes ago
Anarchduke
too late
Nizedk
And hating Excell
urukhello
The best thing about finance is that it’s entirely a fabricated discipline yet everyone has to play by it’s rules
TheAziz
I am without doing anything because the inflation is skyrocketing. By about 12 percentage points since last year.
superbest
I’ll never get that 5 minutes back
BurningVeryImportantThings
I just lost 10 bucks reading this comment.
mycoffeeartjourney
1000 million = billion still annoys me
ImNotStalkingYouBTWYoureOutOfMilk
It's called a short billion, but since nobody uses the long billion (1mil²), it became the standard
ViperMD
"but since nobody uses the long billion" .. it seems a bit more nuanced.. https://en.wikipedia.org/wiki/Long_and_short_scales#Current_usage
EatsBees
jokes on you, i can make myself poorer in 5 minutes WITHOUT talking finance
GravyEducation
Well stop eating bees, you're only getting more hospital bills and less honey
CatLestat
Capitalist tip: you’re always getting poorer unless you’re exploiting something or someone.
Kuvajainen
Maybe capitalism was invented by some mad alchemist who researched the eternal youth. Your value decreases every second because you get/
Kuvajainen
Older and weaker and closer to death. Capitalism is a way for old people to keep their value intact. Luckily it doesn't prevent them from/
ImmaCatImmaSexyCat
Capitalist tip: if you have empathy, always say you’re exploiting someTHING and not someONE. Acknowledging humanity hurts quarterly reports.
valvarsson
I try to exploit people but I just can’t seem to get started?. Any tips?
MildlyConfusedDino
Be a republican
PathologicalLier
Get yourself a friend who has no other friends and cant say no. Then gaslight him into lending you money you never repay
YourMomWasHere
Exploit me daddy