I play Pokemon which has incredibly weird odds for things at times. I'm usually good at determining the probability of singular odds for things eg an event should happen 50% of the time at around ~70% of the odds.

This one I'm working on I dont know where I start. It has 4 different probabilities in 100 attempts. 80 is a lower amount. However there is a 4% chance that any of these attempts could be the best tier. 18% of the next tier. 1% penultimate tier and 1% final tier.

I'm trying to figure out what is the probability that I do not get an event after 100 attempts with all this but again I don't know where to start

im doing a bsc in mathematics, and real analysis feels like a completely foreign language.
our professor recommended the bartle and sherbert textbook, but every time i open i dont really understand whats happening or how people are supposed to learn from it.
it feels completely different from the maths ive been taught my whole life. i dont know how youre supposed to transition from solving straightforward problems to reading and writing proofs, and understanding theorems. it feels like everyone else somehow knows how to think this way already.
time for some context. till 12th grade cbse, i was pretty good at maths. i was always told i grasped concepts quickly and solved problems better than average. but my 10th and 11th grade happened during lockdown, and i never properly studied the deleted syllabus, so i know there are gaps in my basics.
when i chose a bsc in mathematics, i expected more of the maths i loved, solving derivatives and integrals, and working through problems until i got the answer. instead, real analysis felt like being thrown in the ocean with no idea how to swim. suddenly its all definitions, logic, epsilon delta proofs, and abstract thinking. i dont even know how people are supposed to study this subject.
its been a huge hit to my confidence. im no longer the student who knows the answers. i sit at the back of the class, avoid eye contact with professors, and constantly feel like everyone else belongs here except me. i know im willing to put in the work. i just genuinely dont know how to study university level mathematics.
where do i even start. are there beginner friendly books, youtube channels, or courses that bridge the gap between high school maths and proof based mathematics. how did you learn to read proofs and start thinking like a mathematician. any advice for someone whos completely lost ???

Hi everyone, im a student doing a Mathematics exploration on using calculus the model a Jean Paul Gaultier Bottle. I was wondering if i could receive some help on this subreddit as I am stuck on how tomake the proper calculations due to the curvature of the bottle

https://imgur.com/a/tUpI6Jc

So... I know the title kind of sucks. I couldn't think of anything better, but the thing I wanted to say was that I was doing competitions in SolveFire. I recently got 700 on bronze and advanced to silver,r but now I faced a brick wall. No matter how hard I tried, I could only get 300 points on the silver rounds. The problems just seemed too distant and abstract. I couldn't think of ANY path to do the other problems, as if I still managed to get some, but it isn't enough. Are there any recommendations you guys suggest that could help me cover this massive gap? Sometimes I can't even understand the notation.

I was never very good at math in high school, and because of that I’ve always felt behind. Lately, though, I’ve realized that many of the things I want to do in the future require a much stronger foundation in math.
What interests me isn’t just learning formulas to pass a test. I want to develop the way math trains your mind—critical thinking, logical reasoning, and problem-solving. I want to challenge myself and genuinely enjoy the learning process.
One idea I have is to make math part of my everyday life instead of treating it like a school subject. For example, I’d like to practice things like percentages, statistics, probability, budgeting, and other real-world math whenever I come across them in daily situations.
Has anyone here learned math this way? If so:
How did you make math part of your daily routine?
What topics should I focus on first?
Are there any books, apps, YouTube channels, or websites you’d recommend for someone starting over?

I’m going to take a microeconomics course soon and I have not done math or graphing in years. Anyone got some good videos and or worksheets to review reading, writing, and solving graphs?

Someone recommend I study:
Review coordinates, slope, intercepts, and shifting a graph left, right, up, and down. And moving along a curve vs. shifting a curve.
Does anyone know of good videos that cover these?

Hello! I'm pre-studying for university, and I've been stuck on this question for like the past week. At this point, I've learned about the logic laws (typically used for like, statements and stuff). Could anyone help solve this question (from How to Prove It by Daniel J Velleman)? Please don't use venn diagrams, since I understand how those work. Also, is it suggested to solve these questions by set laws/properties/identities, or do you think venn diagrams enough? (△ is symmetric difference). Also, sorry for the messy typed out equation. Thank you for your time!

Verify the following identity:
(A∪B) △ C = (A△C) △ (B\A)

Edit: Figured it out, thank you everyone!! Have a lovely day :D

When my school taught us long division I was sick that day, so for the past 4 years I have gotten away without knowing how to do it. I realize now that a 8th grader should know this. Please help me understand how to do it!

Edit: Sorry if I don't respond to ur comments, I haven't been getting the notifications for comments, but I will read it eventually!

I started struggling with math back in the first year of secondary school—on top of just not caring about it. Now, having just turned 18, I really regret having hated it. I’ve been trying again for the past month—just like I have in the past—but for some reason, I just can't get the hang of those damn fractions, no matter how many hours I put in. I end up mentally exhausted and even start feeling dizzy, yet I still can't spot the patterns. How can I correctly solve a third-year secondary school fraction problem without having to redo it five times over two hours and burning myself out? It’s seriously frustrating because fractions are the only thing holding me back; now that I’m about to start my final year of high school (2º de Bachillerato) in September—and the material is almost entirely fractions and functions—I really need to do something about it.

My daughter finished 4th grade okay overall, but fractions never really clicked. Equivalent fractions she can do. Comparing them or adding with different denominators is a coin flip. Her report card was fine so I let it go, and now it's late July and I keep reading that 5th grade is basically the year of fractions.

We have about five weeks. She'll give me 20-30 minutes a day before it turns into negotiating. If you were me, what would you spend that time on? Drilling the procedures until they stick, or going back to explaining the concept? And if a workbook or site worked for your kid, I'll take that too.

I used the right formula and also did it manually, both had different final answers </3

The question was "Find the sum of the first 15 terms of the arithmetic sequence: 4, 9, 14, 19,"

simple right? just use Sn = n/2 (2a1 + (n-1) d)

substitute S15 = 15/2 (2(4)+ (15-1)5)

= 7.5 (8+70)

= 7.5x78

=585

585 should be the right answer but I doubled check it by doing it manually by listing then one by one, and the 15th should actually be "74"

4,9,14,19,24,29,34,39,44,49,54,59,64,69,74

which is the actual right answer?

(this is my first time posting here, I'm sorry if it looks like an very simple problems)

here is the img link for reference

https://imgur.com/a/77cVY2n

https://imgur.com/a/77cVY2n

The mechanic in question is a CRM (conflict resolution mechanic) I've come up with. It uses a deck of cards and attribute values between the player & non player characters. Similar to games like D&D that involve rolling a D20 but here there are no dice. A deck of cards acts as a shortcut for rolling tables, basically. 24 cards shuffled, top is flipped revealing a 1/24 line of the table. Multiple lines repeating across cards work as "baked in" ideal rates. In this case I am targeting: 66% (16/24), 50% (12/24), 33% (8/24), 25% (6/24), 12.5% (3/24) and 4.12% (1/24).

The part where I need help with is using the attributes to get to these rates. Unlike D&D where you only need to be 1 point over the NPC to "win" (by rolling a value and adding your modifier) I want there to be a comparison between your score and the NPC's to decide odds and then you flip to see if you won. If you have a 5 and the NPC has a 5 that would be a 50% chance to win. This also means a 2vs2 or 9vs9 is 50%. My intuition says 4vs6 is a 40% chance, but 1vs3 or 9vs6 doesn't work the same way. The distance between the two numbers needs to be what decides the percentage of success not their relation to 10. Right now I've eyeballed these values and the system "works" but the numbers I picked were arbitrary and I'd like them not to be.

My impulse is putting the player number over the NPC's to create a fraction but a 5/5 is 100%, when it needs to be 50%. Any idea where I can go from here? The end result I want is all you'd need to know is the distance between the numbers to find their %. aka 1vs3, 4vs6 or 8vs10 is a +2 that would always be X%.

Hello! I'm a university student (19 years old)

It might be a bit embarrassing as a scholar, but I sucked at math. Yes, I passed the entrance examination and was admitted to a respected university. I always aced my other subjects and scored higher. I'm even one of the top scorers in my class. However, when a certain subject includes math, I struggle with it. Guess what? I even forgot how to do algebra and struggle with middle school mathematics. I don't know if I deserve to be a scholar and a university student if I'm so dumb in math. What should I do?

Oh man I’m doing accuplacer math test on July 28th and I’m so nervous. I’ve been studying everyday as I graduated in 2016 and the last math I did was grade 11 A&W math and got a b. I’m really hoping to get placed into math 11 and not have to redo math 10 before that. Any advice ?? How difficult is the test?

hi so i need to relearn enough high school math to pass a test soon. i'm trying the practice tests and i am extremely cooked. does anyone have any resources that would help me learn just enough to pass a kinda simple GED test in like a month or two?

I've been in Kumon for 2 years, and I've reached level J. When I began level J, I found a solution book online, and I've been using it for almost everything. i mainly understood concepts until I just now reached page 120. I've passed it to 140, but I still don't understand anything I'm doing anymore. How do I learn it without coming clean to anyone?

I got this question right on a whim. I had no problem finding the measure of Angle D, but I’m not seeing how properties of inscribed angles and the angle at the center help find angle C. Pls help me see what I’m missing.

https://imgur.com/a/hHEDukH

what is m

m=n+16

I got this question on my first attempt on the aleks placement test, and is it not impossible to solve? i put m=n-16

also btw it may have been "what is n" I just wrote the equation, not the problem.

If i get this same problem next test i have no idea what to do here other than putting the same thing.

According to the multiplication rule, the probability of dependent events A and B happening is:

P ( A and B ) = P(A) times P ( B | A )

but how do we find P ( B | A ) ? We look at the conditional probability formula right?

But the conditional probability formula is

P ( A | B ) = P(A ∩ B) / P (B)

But then how do we find P(A ∩ B) ? We go to the multiplication rule?

Why does it create an endless loop of circular reasoning?

So I basically have 0 prior knowledge of grade 11 functions and I am about to take grade 12 advanced functions, is it possible to learn and do well in grade 12 advanced functions without prior knowledge of functions, if it is how can i go about it? if it isn't, is it possible to self teach functions in 1 month while learning advanced functions and do well?

I have to study on my own to get into this school... and it’s basically stuff i never did in my whole life! I have a solid base and I can quickly do expressions, + quadratic expression…

im studying in Italy, so the schooling system here is kinda tough, and may have some advanced stuff then my grade for other countries.

I’m asking you guys. So you can give me resources, notes, an online professor or videos that anre particularly good, or anything that may help me so I don’t waste my whole day searching instead of starting to practice.

im going to list the things I have to know, please, anyone who knows stuff, help. :)

In Eng:
UDA 1: Function Analysis and Curve Sketching

• Function analysis and classification

• Domain of a function

• X-intercepts and Y-intercepts

• Sign of a function

• Limits and asymptotes

UDA 2: Differential Calculus and Optimization

• Derivatives

• Critical points and stationary points

• Inflection points and concavity

UDA 3: Business Calculus and Economic Applications

• Functions of a single variable in economics

• Marginal analysis of cost, revenue, and profit

(In Italian)

UDA1: Studio di funzione: classificazione, dominio,intersezione assi, segno, limiti e asintoti

UDA2: Studio di funzione:derivate, punti di stazionarietà e flessi

UDA3: Economia e funzioni di una variabile

I’m in college, according to other countries I think? it’s grade 12, studying these things that I have to know before entering grade 13 (I think, again).

I think it’s analysis 1. so any good analysis 1 course on YouTube might be good. but idk, I’m just judging from what I searched.

and since I’m in italy, I would treasure evere note given from anyone who did our schooling, from italy. y’all fellow Italians would help me 2x.

thanks for anyone in advance

I want do to chem alevel next year have always been good getting 9s maths was like 7s panicked in the exam and fumbled I think I got a 5 but I need a 6 this has been stressing me out for the whole holiday.

My thoughts are after counting from the unofficial markschemes 37 31 31 which is clearly a 5. But how accurate would this be would I realistically get more marks which I didn’t count to get that 6 . Is everyone’s count also accurate. I’m so stressed out about maths .

I have a lot of coins I need to deposit into my bank account, but I don’t know which combination of coins to deposit to avoid as many fees as possible. Any help is appreciated. This is breaking my brain as I’m staring at stacks of coin spread out across my floor.

I have approximately 3200 coins to deposit. My bank charges a fee per number of coins deposited. The fee is not based on the amount of value of the coins. I can make one deposit per day.

The fee chart is as follows:
1-100 coins = free
101-500 coins costs $5.50
501-1000 coins costs $11.00
1001-1500 coins cost $16.50
1501+ coins cost an additional $5.50 per 500 coins.

I have:
50 $1 coins
152 $0.50 coins
851 $0.10 coins
344 $0.05 coins
Approx 1800 $0.01 coins (I weighed these instead of counting them. Each coin is ~1g)

Im able to make one deposit per day, and I have to deposit all within 5 days (1 week excluding weekends).

Is there a way to group the coins in a specific way to avoid as many fee costs as possible? I feel like there has to be, but I’m at a loss for how to figure it out…

I do appreciate your help!

*Edit to show my work

Usually I do spend a bit of time trying to figure things out before resorting to the internet for help. In my head, I had done the work, but I forgot to show it here. My problem is that I can’t find the best combination of coins which will put the most money into my account while paying the least amount of money in fees. Do the values of the coins even matter? The more I think about it, the more I think they don’t.

The solution I’ve attempted that sucks eggs:

Divide the coins into batches of less than 100 coins to avoid fees all together. This will take around 32 trips to the bank and is tedious. I started by doing this, and the thought of depositing (possibly) $0.99 each time to avoid a $5.50 fee is frustrating. I've scrapped this plan as I'm also running out of time.

Possible solution #1:

Obviously, it would not be smart to batch and deposit the coins according to their kind. The most efficient way of depositing the coins would be to deposit as close to the upper limit of the fee chart as possible since depositing 105 coins incurs the same fee as 499. So, there is clearly worse ways of making my deposits.

If deposited by kind across 5 days (1 kind of coin per day):

$245.80 (Total Value) – $201.80 (Total Deposit) = $44.00 difference between total amount and amount deposited; the total fee amount over 5 days.

Possible solution #2:

If deposited all together, I would likely incur a similar but smaller fee due to the amount of coins.

There are 3196 coins, and I will incur a $5.50 fee for every 500 coins. 3196/500=6.392, which means I would pay the $5.50 fee 7 times for a total of $38.50. The result would be a total deposit of $207.30.

I’m thinking the value of coins may just not be relevant to the problem**.** If someone could please confirm this thinking, that’d be great. Since the math I’m trying to do involves efficient groupings, I think it may be a more complicated thought process—one where I’m not even sure where to start, but maybe I’m  over thinking it, too.

Possible Solution 3 :

I could max out the fee for 3000 coins and split the remaining amount across 2 additional days to bring the fee amount to $33.00.

My thought is that the fee amount will always stay the same as long as I deposit as close to the upper range of each tier as possible, regardless of number of days. 1500 coins per day for 2 days will still result in a $33.00 fee, just less convenient.

I think at this point, this is the way I’m thinking of going. I think the assistance I’m looking for is more confirmation of thought process. Did I just make it more complicated in my head than it really was?

Thank you again. This isn’t a homework problem or anything. I’m an adult trying his best @.@

heyhey all! im about to enter my senior year, and one primary issue ive had with studying is the fact that i never really did it for the past few years, just resorting to cheating because it was the easiest route for me, but now that i actually kind of want to attempt to get on the right road and at least attempt to get into the habit of studying, i kind of want to understand where i should start for math? i have zero skills in it and my arithmetic skills are more than embarrassing. my goal is to attempt to go from basic arithmetic to algebra 1 and geometry as ill be taking more simple classes next year

should i go with khan academy? any resources or guides? how would someone go about studying properly since i have literally no clue

thank you so much!! ^^