Para una población de 50.000 habitantes establezca la muestra para una investigación de mercados dónde el nivel de confianza tenido en cuenta es del 90% con un margen de error del 10%

Use the frequency distribution, which shows the number of american voters (in millions) according to age, to find the probability that a voter chosen at random is in the 18 to 20 years old age range. ages frequency 18 to 20 5.9 21 to 24 7.7 25 to 34 20.4 35 to 44 25.1 45 to 64 54.4 65 and over 27.7 the probability that a voter chosen at random is in the 18 to 20 years old age range is nothing. (round to three decimal places as needed.)

The domain of a function can be represented by which one of the following options? o a. a set of output values o b. a set of f(x) values o c. a set of input values o d. a set of both input and output values

Which equation represents a direct linear variationa. y=x2b. y=2/5xc. y=1/xd. y=x+3