the mean is the average of all the salaries an the the median is the number that falls in the middle
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Mean, median and mode are averages of sets of numbers, not one single one.
First, I will give an example, similar to your question: -11000 -9000 +44000 mean = 8,000 and median = -9000. Symmetrical distributions after infinite sampling will show no difference in mean and median. Large differences are possible with small sample sizes even with symmetrical distributions. If the sample is large and the difference is large, this infers that the distribution is asymmetrical. The skewness of the distribution can be calculated.
Mean is where you add up all the numbers and divide by how many numbers there are. Median is where you put the numbers in order from least to greatest and you find the middle number by crossing each side out one at a time.
by average we mean any measure of central tendency and mean is one of the averages. other measures of average are median ,mode, geomatric mean and harmonic mean.
the median sellery means the sellery given to the poor people which are doing low quality works like gate keepering or simple works are getting the median sellery.