Given a text passage, come up with an appropriate title for it. The title should accurately represent what the main focus of the passage is. The title of a passage may be present in the first few sentences of the passage and/or be referred to multiple times in the passage. The title should be 1-5 words long.
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Question: '' Man of Constant Sorrow '' ( also known as '' I Am a Man of Constant Sorrow '' ) is a traditional American folk song first published by Dick Burnett , a partially blind fiddler from Kentucky . The song was originally titled '' Farewell Song '' in a songbook by Burnett dated to around 1913 . An early version was recorded by Emry Arthur in 1928 , which gave the song its current titles .

Answer: Man of Constant Sorrow

Question: Crater Lake ( Klamath : giiwas ) is a caldera lake in south - central Oregon in the western United States . It is the main feature of Crater Lake National Park and is famous for its deep blue color and water clarity . The lake partly fills a nearly 2,148 - foot ( 655 m ) - deep caldera that was formed around 7,700 ( 150 ) years ago by the collapse of the volcano Mount Mazama . There are no rivers flowing into or out of the lake ; the evaporation is compensated for by rain and snowfall at a rate such that the total amount of water is replaced every 250 years . With a depth of 1,949 feet ( 594 m ) , the lake is the deepest in the United States . In the world , it ranks ninth for maximum depth , and third for mean ( average ) depth .

Answer: Crater Lake

Question: Probability is the measure of the likelihood that an event will occur . See glossary of probability and statistics . Probability is quantified as a number between 0 and 1 , where , loosely speaking , 0 indicates impossibility and 1 indicates certainty . The higher the probability of an event , the more likely it is that the event will occur . A simple example is the tossing of a fair ( unbiased ) coin . Since the coin is fair , the two outcomes ( '' heads '' and '' tails '' ) are both equally probable ; the probability of '' heads '' equals the probability of '' tails '' ; and since no other outcomes are possible , the probability of either '' heads '' or '' tails '' is 1 / 2 ( which could also be written as 0.5 or 50 % ) .

Answer:
Probability