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Binomial Distribution Calc
Solution, steps & graph
Information
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iPhone 9 images
iPad 7 images
What’s New Version 3.2.0
Bringing all apps to the same security standard. Critical storage behaviour for solutions has been fixed.
By the way - I run many apps with different math topics. If you like this one: Check them out as well!
I always do my best to keep a high standard on my apps. If something does not meet the expectations, do not hesitate to contact me.
Description
Finish your homework instantly. Prepare for exams without stress. Free, complete step-by-step solutions. Enter your values and calculate cumulative probabilities P(X ≤ k) and P(X > k), as well as expected value E(X), variance Var(X), and standard deviation σ – with histogram and distribution function.
GET STARTED
Enter your values in the correct fields and get started. You receive the solution instantly and can share it with friends or classmates.
YOUR PERSONAL DATA
We don’t need it. Only anonymized data is collected, for example:
- which features are used
- how many solutions are generated
This helps us improve. No conclusions can be drawn about you.
COST
Everything is free to use. 24/7 access to your solutions. All solution steps are always fully available.
If you need many solutions in a short time, various purchase options are available.
EXTRAS
- curated learning videos
- feedback for incorrect inputs
- manage your own solutions
- app introduction
CONTACT
Questions and feedback via Discord or directly in the app review.
In-App Purchases US pricing
One-Time Purchases
+30 User Tokens $0.29
+1 Convenience Token / 6h, max. +2$0.59
+2 Convenience Tokens / 6h, max. +4$0.99
+150 User Tokens $0.99
+300 User Tokens $1.49
+4 Convenience Tokens / 6h, max. +8$1.59
Remove Ads$1.99
Lifetime Access$1.99
Capabilities
In-App Purchases
Accessibility
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Version history 20 versions
Build 887178060v3.2.02026-06-19 21:55:52
Bringing all apps to the same security standard. Critical storage behaviour for solutions has been fixed.
By the way - I run many apps with different math topics. If you like this one: Check them out as well!
I always do my best to keep a high standard on my apps. If something does not meet the expectations, do not hesitate to contact me.
Build 886575543v3.1.32026-06-06 00:37:28
There were some major fixes and adjustments for a more stable behaviour of the solution storage and loading. Therefore some database changes were made in the background. There are no performance losses and the functionality does not change. The background tasks are only done once within milliseconds. Following behaviour may occur (only temporary):
- stored calculations have to be tapped twice to load fully
- the order of the stored solutions may change
If there are some losses of solutions do not hesitate to contact me and tell me the number of lost solutions + affected app. I will find a solution for this.
Kind regards, Alex (the Dev)
Build 885230522v3.1.22026-05-05 16:16:39
Minor improvements. New crash report system so that maintenance work is much more efficient.
Build 885026426v3.1.12026-04-29 05:24:28
Update of privacy policy. Improving the rating system.
Build 883658737v3.1.02026-04-01 19:06:04
The introductory phase of the Token System has ended! We sincerely thank you for your trust and participation!
Prices are now active. Token purchases are no longer free.
The implementation of the Token System has been fully completed.
The latest iOS update caused some minor display issues with images. These UI errors have now been fixed, and further improvements to the UI have been made.
Build 882574532v3.0.02026-02-18 21:34:41
This time there is a major update. We are introducing the new token system! Many small fixes, revisions, and improvements have been made across various areas. The interface is cleaner and clearer explanations have been added.
With this, we say goodbye to ads, third parties, and tracking! During the introduction phase, token content is free!
Build 879631476v2.6.22025-11-10 18:37:00
Preparation for the new token system, which will be released with the next updates.
Build 879591753v2.6.02025-11-08 04:37:52
The old advertisement system was removed. We completely eliminated tracking from third-party advertising systems and reduced the required consents according to our app's new privacy policy.
Build 879214231v2.4.52025-10-24 22:36:50
Too big numbers sometimes caused crashes. This has been fixed as well.
Build 879112122v2.4.42025-10-22 06:24:03
- The display of the solutions was corrected (should improve readability)
- The feedback system for wrong inputs was improved
- The storage feature for used calculations was reworked and no longer saves duplicates
Build 879079268v2.4.32025-10-20 17:50:33
The axes for the charts were corrected. If a point is tapped, the popup window now displays a clear structure of that specific point within the chart.
Build 875085764v2.4.22025-05-27 08:38:52
We check the performance of some service tasks to improve some service functions. By the way - did you know that you can contact us easily? For this check the menu button on the top left. Do not hesitate to contact us if you have any suggestions or issues.
Build 874582569v2.4.12025-05-07 16:06:50
Bug fixes and performance improvements
Build 873954931v2.042025-04-13 08:01:11
We still improve the app. Fixed some minor bugs.
Wish you a nice day!
Build 871934530v2.032025-01-22 17:11:16
Calculations with k = n did cause crashes. This is fixed now. Sorry for the inconvenience.
Build 869945542v2.022024-10-24 15:44:49
Increased the stability of the app. We wish you a nice day!
Build 869868419v2.012024-10-21 20:18:01
Some minor fixes and improvements. The onboarding can be skipped now on first app start.
Build 869648100v2.002024-10-14 13:25:57
Huge update:
- Dark mode
- short messages will support you when you enter incorrect inputs
- new Onboarding for a better introduction into the app
- input has been limited because huge values cause results out of universe
- random crashes did occur. This has been fixed
- expanded and improved the menu list for options and further information
- latest apps can be accessed now by the menu list
- chart has been improved
- screenshots display charts correctly now
- Russian translation has been reworked
- crashes caused by the YouTube Videos has been fixed
- for some users the purchase process popped up at app start. This was not an intended behaviour. It has been fixed
Build 866931207v1.102024-06-26 10:41:39
- added video tutorials at the end of the calculation
- added a link to our discord server in the menu on the left
- minor fixes
Build 861560648v1.02024-03-22 02:31:01
Price history by region
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Availability 1 of 1 storefronts
| Region | Language | Price | Ratings | Avg | Version |
|---|---|---|---|---|---|
US | en-US | Free | 0 | — | 3.2.0 |
Change log 24 changes · US
✎
releaseNotes updated
Bringing all apps to the same security standard. Critical storage behaviour for solutions has been fixed.
By the way - I run many apps with different math topi
✎
description updated
Finish your homework instantly. Prepare for exams without stress. Free, complete step-by-step solutions. Enter your values and calculate cumulative probabilitie
✎
subtitle updated
Solution, steps & graph
✎
name updated
Binomial Distribution Calc
◆
Version 3.2.0 released
Bringing all apps to the same security standard. Critical storage behaviour for solutions has been fixed.
By the way - I run many apps with different math topics. If you like this one: Check them out as well!
I always do my best to keep a
◆
Version 3.1.3 released
There were some major fixes and adjustments for a more stable behaviour of the solution storage and loading. Therefore some database changes were made in the background. There are no performance losses and the functionality does not change.
◆
Version 3.1.2 released
Minor improvements. New crash report system so that maintenance work is much more efficient.
◆
Version 3.1.1 released
Update of privacy policy. Improving the rating system.
◆
Version 3.1.0 released
The introductory phase of the Token System has ended! We sincerely thank you for your trust and participation!
Prices are now active. Token purchases are no longer free.
The implementation of the Token System has been fully completed.
Th
◆
Version 3.0.0 released
This time there is a major update. We are introducing the new token system! Many small fixes, revisions, and improvements have been made across various areas. The interface is cleaner and clearer explanations have been added.
With this, we
◆
Version 2.6.2 released
Preparation for the new token system, which will be released with the next updates.
◆
Version 2.6.0 released
The old advertisement system was removed. We completely eliminated tracking from third-party advertising systems and reduced the required consents according to our app's new privacy policy.
◆
Version 2.4.5 released
Too big numbers sometimes caused crashes. This has been fixed as well.
◆
Version 2.4.4 released
- The display of the solutions was corrected (should improve readability)
- The feedback system for wrong inputs was improved
- The storage feature for used calculations was reworked and no longer saves duplicates
◆
Version 2.4.3 released
The axes for the charts were corrected. If a point is tapped, the popup window now displays a clear structure of that specific point within the chart.
◆
Version 2.4.2 released
We check the performance of some service tasks to improve some service functions. By the way - did you know that you can contact us easily? For this check the menu button on the top left. Do not hesitate to contact us if you have any sugges
◆
Version 2.4.1 released
Bug fixes and performance improvements
◆
Version 2.04 released
We still improve the app. Fixed some minor bugs.
Wish you a nice day!
◆
Version 2.03 released
Calculations with k = n did cause crashes. This is fixed now. Sorry for the inconvenience.
◆
Version 2.02 released
Increased the stability of the app. We wish you a nice day!
◆
Version 2.01 released
Some minor fixes and improvements. The onboarding can be skipped now on first app start.
◆
Version 2.00 released
Huge update:
- Dark mode
- short messages will support you when you enter incorrect inputs
- new Onboarding for a better introduction into the app
- input has been limited because huge values cause results out of universe
- random crashes d
◆
Version 1.10 released
- added video tutorials at the end of the calculation
- added a link to our discord server in the menu on the left
- minor fixes
◆
Version 1.0 released