Context and question: Tuvalu experiences the effects of El Nino and La Nina caused by changes in ocean temperatures in the equatorial and central Pacific. El Nino effects increase the chances of tropical storms and cyclones, while La Nina effects increase the chances of drought. Typically the islands of Tuvalu receive between 200 to 400 mm (8 to 16 in) of rainfall per month. However, in 2011 a weak La Nina effect caused a drought by cooling the surface of the sea around Tuvalu. A state of emergency was declared on 28 September 2011; with rationing of fresh-water on the islands of Funafuti and Nukulaelae. Households on Funafuti and Nukulaelae were restricted to two buckets of fresh water per day (40 litres).
What did a drought in 2011 cause on Funafuti?
Answer: rationing of fresh-water
Context and question: If the data to be compressed is analog (such as a voltage that varies with time), quantization is employed to digitize it into numbers (normally integers). This is referred to as analog-to-digital (A/D) conversion. If the integers generated by quantization are 8 bits each, then the entire range of the analog signal is divided into 256 intervals and all the signal values within an interval are quantized to the same number. If 16-bit integers are generated, then the range of the analog signal is divided into 65,536 intervals.
What are all signal values within an analog quantized to?
Answer: unanswerable
Context and question: As of 2013, the American Idol alumni in their post-Idol careers have amassed over 59 million albums and 120 million singles and digital track downloads in the United States alone.
How many albums have Idol contestants created as of 2013?
Answer:
59 million