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In statistics, the 68–95–99.7 rule, also known as the empirical rule, and sometimes abbreviated 3sr, is a shorthand used to remember the percentage of values that lie within an interval estimate in a normal distribution: approximately 68%, 95%, and 99.7% of the values lie within one, two, and three standard deviations of the mean, respectively.
The number of deaths per passenger-mile on commercial airlines in the United States between 2000 and 2010 was about 0.2 deaths per 10 billion passenger-miles, [89] [90] while for driving, the rate was 1.5 per 100 million vehicle-miles for 2000, which is 150 deaths per 10 billion miles for comparison with the air travel rate.
Statistics. In the United States, the Environmental Protection Agency assumes the typical car is driven 15,000 miles (24,000 km) per year. According to the New York Times, in the 1960s and 1970s, the typical car reached its end of life around 100,000 miles (160,000 km). Due in part to manufacturing improvements, such as tighter tolerances and ...
The value of life is an economic value used to quantify the benefit of avoiding a fatality. [1] It is also referred to as the cost of life, value of preventing a fatality (VPF), implied cost of averting a fatality (ICAF), and value of a statistical life (VSL). In social and political sciences, it is the marginal cost of death prevention in a ...
kilometre (km) or kilometer is a metric unit used, outside the US, to measure the length of a journey; the international statute mile (mi) is used in the US; 1 mi = 1.609344 km. nautical mile is rarely used to derive units of transportation quantity.
In August 2016 alone, their cars traveled a "total of 170,000 miles; of those, 126,000 miles were autonomous (i.e., the car was fully in control)". [106] In 2017, Waymo reported a total of 636,868 miles covered by the fleet in autonomous mode, and the associated 124 disengagements, for the period from December 1, 2015, through November 30, 2016 ...
More than 99 percent of all species that ever lived (over five billion) [1] are estimated to be extinct. [ 2 ] [ 3 ] Estimates on the number of Earth's current species range from 10 million to 14 million, [ 4 ] with about 1.2 million or 14% documented, the rest not yet described . [ 5 ]
Only 19% of people in the U.S. live in rural areas, and 30% of the VMT (vehicle miles traveled) occur in rural areas, but half of the crash deaths does occur in those rural areas: [32] while there are 0.87 deaths per millions miles traveled in urban area, there are 1.93 deaths per millions miles traveled in rural areas. [32]