What's the Logic of this Application using Math

  • Context: MHB 
  • Thread starter Thread starter ahmadtahir1919
  • Start date Start date
  • Tags Tags
    Application Logic
Click For Summary

Discussion Overview

The discussion revolves around understanding the mathematical logic behind a mobile application that claims to determine a user's age based on their responses to a series of screens displaying numbers. The focus is on the algorithmic and mathematical principles that may underpin the application's functionality.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant requests access to all four screens to better analyze the algorithm, suggesting that the provided information is insufficient for a thorough understanding.
  • Another participant proposes that the application operates as a binary test, where each yes/no response provides one bit of information, potentially reducing the list of possibilities significantly.
  • Some participants express skepticism about the application's ability to accurately determine an age with only four screens, noting that even with binary responses, a significant number of possibilities remain after four queries.
  • There is a suggestion that the application might yield more than one bit of information per screen, but it is still questioned whether four screens are adequate for the task.

Areas of Agreement / Disagreement

Participants generally do not reach a consensus on the application's logic, with multiple competing views regarding its effectiveness and the sufficiency of the provided screens and responses.

Contextual Notes

The discussion highlights limitations in the available information, particularly the lack of access to all screens and the ambiguity surrounding the algorithm's operation. There are unresolved questions about the mathematical assumptions and the effectiveness of the proposed binary testing method.

ahmadtahir1919
Messages
1
Reaction score
0
View attachment 6380View attachment 6381View attachment 6382

Here i attached some mobile application screenshots
I want to know the logic of this application

1:- It have four screens and every screen have numbers.
2:-Application asked on every screen "Do you Know your age is here in these numbers".
3:-If i see the number is on the screen then i pressed "Yes" otherwise press "NO".
4:-This procedure repeat 4 times and application fined out the number or age that is in my mind.

Help me the Logic of this Application using Math.
 

Attachments

  • i4^pimgpsh_thumbnail_win_distr.jpg
    i4^pimgpsh_thumbnail_win_distr.jpg
    12.6 KB · Views: 142
  • i5^pimgpsh_thumbnail_win_distr.jpg
    i5^pimgpsh_thumbnail_win_distr.jpg
    11.7 KB · Views: 122
  • i6^pimgpsh_thumbnail_win_distr.jpg
    i6^pimgpsh_thumbnail_win_distr.jpg
    11.4 KB · Views: 127
Mathematics news on Phys.org
It would be helpful if we had access to all four screens so that we could compare and figure out how the algorithm is operating. One and a half screens are not enough.

Also, the links to the attachments are irrelevant to this question.
 
  • Like
Likes   Reactions: Greg Bernhardt
It seems to be a binary test. Each yes/no answer provides only one bit of information, which trims any list down to a 16th of the original list. From a list of 100, that still leaves 6-7 values after 4 pages. Don't see how it can work without 3 more queries.
 
  • Like
Likes   Reactions: Greg Bernhardt
Halc said:
It seems to be a binary test. Each yes/no answer provides only one bit of information, which trims any list down to a 16th of the original list. From a list of 100, that still leaves 6-7 values after 4 pages. Don't see how it can work without 3 more queries.
what he said (very small).jpg

Seems to me you get more than one bit's worth of info per screen but not enough to do it in 4 screens.
 

Similar threads

  • · Replies 6 ·
Replies
6
Views
5K
  • · Replies 9 ·
Replies
9
Views
10K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 157 ·
6
Replies
157
Views
18K
  • · Replies 16 ·
Replies
16
Views
2K
Replies
4
Views
1K
  • · Replies 8 ·
Replies
8
Views
2K
  • · Replies 24 ·
Replies
24
Views
8K
  • · Replies 3 ·
Replies
3
Views
1K
  • · Replies 8 ·
Replies
8
Views
3K