Posts

Weißrussische Sozialistische Sowjetrepublik

Image
Flagge Wappen Amtssprache Weißrussisch, Russisch, Jiddisch und Polnisch Hauptstadt Minsk Fläche 207.600 km² Einwohnerzahl 10.151.806 Bevölkerungsdichte 48,9 Einwohner pro km² Zeitzone UTC + 2 Vorlage:Infobox Staat/Wartung/NAME Die Weißrussische Sozialistische Sowjetrepublik , auch Belarussische Sozialistische Sowjetrepublik (auch „Belorussische SSR“ oder BSSR, weißrussisch/belarussisch Беларуская Савецкая Сацыялістычная Рэспубліка , russisch Белорусская Советская Социалистическая Республика ; bis 1936/37 Беларуская Сацыялістычная Савецкая Рэспубліка), wurde am 1. Januar 1919 im russischen Smolensk proklamiert. Hauptstadt war Minsk. Sie war eine der vier Republiken, aus denen 1922 die Sowjetunion gegründet wurde. Mit der Ausrufung der Republik Belarus am 26. August 1991 hörte die BSSR auf zu existieren. Inhaltsverzeichnis 1 Entwicklung 2 Bevölkerung 3 Literatur 4 Weblinks 5 Einzelnachw...

Timetracking grid system in Vue JS to work with PostgreSQL

Image
0 I'm trying to build an application where users can track their hours worked per day by logging numbers in a grid system. It looks something like this: https://jsfiddle.net/L5u1fc0a/130/ - if you try to add some numbers in any "cell", you'll see that it populates the JSON below like this: [ { "name": "Erik", "times": { "2018-10-01": "10" } } ] I wish to transform my v-model so it work nicely with my PostgreSQL database, where I got two tables, one for users, and another table for hours logged. The data represented in my database looks something like this: "userdata": [ { "id": 2, "firstname": "Joe", "lastname": "Bergsen", ...

Probability of sending same postcards to 10 friends out of 15 types of postcards

Image
0 $begingroup$ In a shop there are 15 types of postcards, and you want to send one postcard to each of 10 friends. To save precious vacation time, you decide to select each postcard independently at random from the 15 types. a)What is the probability that you manage to send everyone the same type of postcard? My solution for (a) is: The total possible ways to send the postcards is ${15} choose {10}$ which is 3003 ways. I know that to discern the probability of sending everyone the same postcard, I would have to find $x$ whereby $frac{x}{3003}$ . However, I am having trouble finding $x$ . Would $x$ be $frac{10}{15}$ since there are 10 out of 15 ways to send the same postcard, whereby each postcard would be sent out 10 times? Could anyone help clarify this and if I am wrong or not? thanks. ...