Estimated Arrival and Price: Watch for the Aventador SV to be unveiled at the Geneva auto show in March before going on sale later in the year as a 2016 model. Prices are unknown, of course, but anything that Lamborghini calls âsuper fastâ is always super expensive. Donât be surprised if the SVâs price eclipses that of the $500,000 50th Anniversary Aventador by at least $100K. View Photos View Photos.
Other differences have to do with nomenclature, notation, and computations. For example, A a measurable characteristic of a population, such as a mean or standard deviation, is called a parameter; but a measurable characteristic of a sample is called a statistic. We will see in future lessons that the mean of a population is denoted by the symbol Î¼; but the mean of a sample is denoted by the symbol x.
In mathematics, mean has several different definitions depending on the context. In probability and statistics, population mean and expected value are used synonymously to refer to one measure of the central tendency either of a probability distribution or of the random variable characterized by that distribution. In the case of a discrete probability distribution of a random variable X, the mean is equal to the sum over every possible value weighted by the probability of that value; that is, it