Article: The average net household income (after social, pension and health insurance contributions) in Paris was €36,085 for 2011. It ranged from €22,095 in the 19th arrondissement to €82,449 in the 7th arrondissement. The median taxable income for 2011 was around €25,000 in Paris and €22,200 for Île-de-France. Generally speaking, incomes are higher in the Western part of the city and in the western suburbs than in the northern and eastern parts of the urban area.[citation needed] Unemployment was estimated at 8.2 percent in the city of Paris and 8.8 percent in the Île-de-France region in the first trimester of 2015. It ranged from 7.6 percent in the wealthy Essonne department to 13.1 percent in the Seine-Saint-Denis department, where many recent immigrants live.

Question: What was the average income in the 19th arrondissement?
Ans: €22,095


Article: More than 20% of the world's population is Muslim. Current estimates conclude that the number of Muslims in the world is around 1,5 billion. Muslims are the majority in 49 countries, they speak hundreds of languages and come from diverse ethnic backgrounds. Major languages spoken by Muslims include Arabic, Urdu, Bengali, Punjabi, Malay, Javanese, Sundanese, Swahili, Hausa, Fula, Berber, Tuareg, Somali, Albanian, Bosnian, Russian, Turkish, Azeri, Kazakh, Uzbek, Tatar, Persian, Kurdish, Pashto, Balochi, Sindhi and Kashmiri, among many others.

Question: What percentage of the humans in the world are considered Muslim?
Ans: 20%


Article: Darwin proposes sexual selection, driven by competition between males for mates, to explain sexually dimorphic features such as lion manes, deer antlers, peacock tails, bird songs, and the bright plumage of some male birds. He analysed sexual selection more fully in The Descent of Man, and Selection in Relation to Sex (1871). Natural selection was expected to work very slowly in forming new species, but given the effectiveness of artificial selection, he could "see no limit to the amount of change, to the beauty and infinite complexity of the coadaptations between all organic beings, one with another and with their physical conditions of life, which may be effected in the long course of time by nature's power of selection". Using a tree diagram and calculations, he indicates the "divergence of character" from original species into new species and genera. He describes branches falling off as extinction occurred, while new branches formed in "the great Tree of life ... with its ever branching and beautiful ramifications".

Question: Which of Darwin's written works has more in depth information about sexual selection?
Ans: The Descent of Man, and Selection in Relation to Sex


Article: Black-box testing treats the software as a "black box", examining functionality without any knowledge of internal implementation, without seeing the source code. The testers are only aware of what the software is supposed to do, not how it does it. Black-box testing methods include: equivalence partitioning, boundary value analysis, all-pairs testing, state transition tables, decision table testing, fuzz testing, model-based testing, use case testing, exploratory testing and specification-based testing.

Question: What is the main difference between black-box testing and white-box testing?
Ans:
seeing the source code