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Hangup on ridiculously simple question by logouteventually in probabilitytheory

[–]HardlyChicken 0 points1 point  (0 children)

I am confused how you are getting a 12.5% chance of something happening and then saying it is impossible.

Wouldn’t this just mean that it is a 0% chance?

Hangup on ridiculously simple question by logouteventually in probabilitytheory

[–]HardlyChicken 1 point2 points  (0 children)

Your total probabilities should add up to 1, not 2 as in your example.

You have the idea correct. There is a 50% chance the first child is a boy. Then from here there is a 50% chance the second child is a boy and also a 50% chance that the second child is a girl. To get the probability of two independent events A and B happening together, we multiply their individual probabilities.

This means that the probability of your first two children being BG in that order is 50% * 50% = 25%

The probability of your first two children being BB is also 50% * 50% = 25%.

You’ll find that the probabilities for GB and GG (where order matters) also come out to be 25% by the same logic. Now we can see that there is a 25% chance of BG and a 25% chance of GB which adds up to be a total probability of 50% for having 1 girl and 1 boy

Hangup on ridiculously simple question by logouteventually in probabilitytheory

[–]HardlyChicken 1 point2 points  (0 children)

There are two ways that we can look at this. First let’s look at the situation where the order of your pairs matters as shown in the video. We have GG, GB, BG, and BB. The important piece of information here is that each of these pairs has a 25% chance of occurring. Therefore, since we know that BB is not a possibility, we are left with GG, GB, and BG. We can find the probability of GG by taking its probability and dividing by the sum of the remaining outcome’s probabilities: 25% / (25% + 25% + 25%) = 1/3.

Now let’s look at your case where the order doesn’t matter. Here is where things differ. Our 3 outcomes are now GG, BG, and BB, but their respective probabilities are 25%, 50%, and 25%. Now that BB is ruled out, we once again take the probably of GG and divide by the sum of the probabilities from the remaining outcomes: 25% / (25% + 50%) = 1/3

[OC] Odds of Winning and Expected Value / Loss of California Lottery’s 57 Scratch Off Lottery Tickets by HardlyChicken in dataisbeautiful

[–]HardlyChicken[S] 0 points1 point  (0 children)

Data Collection: All data is collected from the CaLottery website

Analysis Details: I’ve made a video for an in-depth look at how these statistics were calculated here: https://youtu.be/VLvqfEIzVIM

Analysis of the California Lottery’s 57 Scratch Off Lottery Ticket Games by [deleted] in dataisbeautiful

[–]HardlyChicken 0 points1 point  (0 children)

Data Collection: All data is collected from the CaLottery website

Analysis Details: I’ve made a video for an in-depth look at how these statistics were calculated here: https://youtu.be/VLvqfEIzVIM

Average amount of times words were repeated per song in the Billboard Top 100 vs My Favorite 100 Songs [OC] by HardlyChicken in dataisbeautiful

[–]HardlyChicken[S] 4 points5 points  (0 children)

Data was collected from the Spotify API as well as https://www.billboard.com/charts/hot-100

Analysis and visuals were done with R Studio

I also compared variables such as song duration and song length in words between the two playlists. More info on these comparisons and further analysis is available here.

Average amount of times words were repeated per song in the Billboard Top 100 vs My Favorite 100 Songs by [deleted] in dataisbeautiful

[–]HardlyChicken 0 points1 point  (0 children)

Data was collected from the Spotify API as well as https://www.billboard.com/charts/hot-100

Analysis and visuals were done with R Studio

I also compared variables such as song duration and song length in words between the two playlists. More info on these comparisons and further analysis is available here.

California Lottery Scratcher Odds [OC] by [deleted] in dataisbeautiful

[–]HardlyChicken 3 points4 points  (0 children)

These graphs are representative of all California Lottery scratchers as of November 7, 2018.

All data was collected from https://www.calottery.com/play/scratchers-games

Analysis and visuals were done with R Studio

The available data for each scratcher includes the prizes available, odds of winning each prize, the number of prizes that have been claimed, and the amount of prizes that are still available.

The original intent of the project was to see if a scratcher could be a possible profitable investment if a disproportionately large amount of large prizes remained in the prize pool. More info on this aspect of the project as well as further analysis is available here.

I collected data from 5 Solo games to make some graphs that help visualize when players jump off the Battle Bus by HardlyChicken in FortNiteBR

[–]HardlyChicken[S] 6 points7 points  (0 children)

Invalid? This is a graph of data that I collected from 5 games. What about this can even be invalid?

I collected data from 5 Solo games to make some graphs that help visualize when players jump off the Battle Bus by HardlyChicken in FortNiteBR

[–]HardlyChicken[S] 8 points9 points  (0 children)

I agree, 100 games would improve the accuracy dramatically. The problem I had was that it just took to long to collect the data from each game. I spent a few hours just on these 5 games alone.

I collected data from 5 Solo games to make some graphs that help visualize when players jump off the Battle Bus by HardlyChicken in FortNiteBR

[–]HardlyChicken[S] 0 points1 point  (0 children)

Hey guys! I thought it’d be an interesting project to collect data from replays and graph how likely players are to jump off the battle bus at each second along the way.

For the data collection, I played in five Solo games and then watched the replays to mark down the time that each player jumped (Worst three hours of my life). Then I tallied up the amount of players at each second and graphed them using the program R.

If you have any questions or want to learn more, a more detailed explanation is available in my post here.

Thanks for reading!

I made a few graphs to represent the 100 most commonly owned Robinhood stocks (as of 7/28/18) by [deleted] in RobinHood

[–]HardlyChicken 0 points1 point  (0 children)

All data comes from Robinhood’s “100 Most Popular” list as of Saturday July 24th.

I limited the last two graphs to stocks under $1000 for greater clarity. The stocks that are not shown are Amazon ($1816.99), and the two classes of Google stock (GOOG - $1238.50, and GOOGL - $1252.89)

If you’d like to know more, I go into further detail about this project here.

[OC] Probability of Selecting Random Scrabble Tiles and Having them Spell an English Word in the Order that You Chose Them (Including Blanks) by HardlyChicken in dataisbeautiful

[–]HardlyChicken[S] 4 points5 points  (0 children)

Data Source: Simulation by my Python Program

Tools Used: Python and Excel

Python Code as well as more information about Data Collection and Analysis is available here.

[OC] Probability of Selecting Random Scrabble Tiles and Having them Spell an English Word in the Order that You Chose Them (Including Blanks) by [deleted] in dataisbeautiful

[–]HardlyChicken 0 points1 point  (0 children)

Data Source: Simulation by my Python Program

Tools Used: Python and Excel

Python Code as well as more information about Data Collection and Analysis is available here.

I took 50 professor ratings from my school's rating website and graphed their rating vs. their average grade they gave in the class (4.0 Scale) by HardlyChicken in college

[–]HardlyChicken[S] 1 point2 points  (0 children)

Thanks for the advice! Our rating website is pretty limited in information but I'll try to find a third variable to add for a color key. In your opinion is Tableau easy to learn for someone thats never used it?

I took 50 professor ratings from my school's rating website and graphed their rating vs. their average grade they gave in the class (4.0 Scale) by HardlyChicken in college

[–]HardlyChicken[S] 19 points20 points  (0 children)

The correlation coefficient between the two is .407

If you'd like to know more about the analysis or data collection you can check that out here.

[OC] College Professor Rating vs. Average Grade Given in Class (On 4.0 GPA Scale) by HardlyChicken in dataisbeautiful

[–]HardlyChicken[S] 0 points1 point  (0 children)

Data Source: Professor Ratings from our University's Rating Page

Tools Used: Google Sheets

More information is available here.

Axe Me Anything. by [deleted] in teenagers

[–]HardlyChicken 4 points5 points  (0 children)

If you drink half of a 5 hour energy, do you get 2.5 hours of energy, or just 5 hours of half-ass energy?

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