mean mode and median are measures of central tendency.
mean mode and median are measures of central tendency.
mean mode and median are measures of what?
central tendency
in descriptive statistics, the mean may be confused with the median, mode or mid-range, as any of these may be called an "average" (more formally, a measure of central tendency). the mean of a set of observations is the arithmetic average of the values; however, for skewed distributions, the mean is not necessarily the same as the middle value (median), or the most likely value (mode). for example, mean income is typically skewed upwards by a small number of people with very large incomes, so that the majority have an income lower than the mean. by contrast, the median income is the level at which half the population is below and half is above. the mode income is the most likely income and favors the larger number of people with lower incomes. while the median and mode are often more intuitive measures for such skewed data, many skewed distributions are in fact best described by their mean, including the exponential and poisson distributions.
mean
bullet::::- the mean & vulgar bits" (previously "the mean & vulgar bits: fractions and averages"), (fractions, converting improper and mixed fractions, adding subtracting multiplying and dividing fractions, primes and prime factors, reducing fractions, highest common factor and lowest common denominators, egyptian fractions, comparing fractions, cancelling out fractions, converting fractions to decimals, decimal place system, percentages: increase and decrease, averages: mean mode and median.)
murderous maths