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Hence the estimator of becomes + ¯, leading the following formula for standard error: (¯) = + ¯ (since the standard deviation is the square root of the variance). Student approximation when σ value is unknown
For example, each of the three populations {0, 0, 14, 14}, {0, 6, 8, 14} and {6, 6, 8, 8} has a mean of 7. Their standard deviations are 7, 5, and 1, respectively. The third population has a much smaller standard deviation than the other two because its values are all close to 7.
The data set [90, 100, 110] has a population standard deviation of 8.16 and a coefficient of variation of 8.16 / 100 = 0.0816; The data set [1, 5, 6, 8, 10, 40, 65, 88] has a population standard deviation of 30.8 and a coefficient of variation of 30.8 / 27.9 = 1.10
Seattle (/ s i ˈ æ t əl / ⓘ see-AT-əl) is the most populous city in the U.S. state of Washington and in the Pacific Northwest region of North America.With a population of 755,078 in 2023, [3] it is the 18th-most populous city in the United States.
The number of millilitres of pure ethanol is the mass of the ethanol divided by its density at 20 °C (68 °F), which is 0.78945 g/mL (0.82353 oz/US fl oz; 0.79122 oz/imp fl oz; 0.45633 oz/cu in). [4] The alc/vol standard is used worldwide.
The name for Sweden is generally agreed to derive from the Proto-Indo-European root *s(w)e, meaning "one's own", referring to one's own tribe from the tribal period. [15] [16] [17] The native Swedish name, Sverige (a compound of the words Svea and rike, first recorded in the cognate Swēorice in Beowulf), [18] translates as "realm of the Swedes", which excluded the Geats in Götaland.
There were 2,184 households, of which 33.3% had children under the age of 18 living with them, 45.0% were married couples living together, 13.0% had a female householder with no husband present, 5.8% had a male householder with no wife present, and 36.2% were non-families. 28.4% of all households were made up of individuals, and 13.8% had ...
The debt ratio or debt to assets ratio is a financial ratio which indicates the percentage of a company's assets which are funded by debt. [1] It is measured as the ratio of total debt to total assets, which is also equal to the ratio of total liabilities and total assets: