Archive for the Travel Category
help for Cox’s Bazar
Posted in Kids, pictures, Travel with tags Bangladesh, Cox's Bazar, donation, hunger, refugees, Rohingyas, UN, United Nations Population Fund on October 25, 2020 by xi'anparking riddle
Posted in Books, Kids, pictures, R, Statistics, Travel with tags combinatorics, Glasgow, Hillhead, no parking, R, riddle, The Riddler on October 23, 2020 by xi'an
The Riddler of this week had a quick riddle: if one does want to avoid parallel parking a car over a six spot street, either the first spot is available or two consecutive spots are free. What is the probability this happens with 4 other cars already parked (at random)?
While a derivation by combinatorics easily returns 9/15 as the probability to fail to park, a straightforward R code does as well
l=0
for(t in 1:1e6){
k=sort(sample(0:5,4))
l=l+1*(!!k[1]|3%in%diff(k)|!k[4]%%3)}
since
> round(choose(6,2)*F/1e6) [1] 10
QMC at CIRM
Posted in Mountains, pictures, Statistics, Travel, University life with tags calanques, CIRM, determinism, Diophantine problems, Jean Morlet Chair, Luminy campus, Marseiile, qMC, quasi-Monte Carlo methods, randomness, research school, Université Aix Marseille on October 21, 2020 by xi'an
on the edge of starvation
Posted in Kids, pictures, Travel with tags 2020, donation, hunger, Nobel Peace Prize, starvation, UN, United Nations, United Nations World Food Programme, Yemen on October 18, 2020 by xi'an
Berliner Schnauze
Posted in pictures, Travel with tags Berlin, coronavirus epidemics, COVID-19, face mask, Germany, pandemic, street advertising on October 15, 2020 by xi'an
