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Eduncle Best Answer
A symmetrical distribution is a distribution where the mean, median and mode are the same. A skewed distribution, on the other hand, is a distribution with extreme values on one side or the other that force the median away from the mean in one direction or the other. If the mean is greater than the median, the distribution is said to be positively skewed. If the mean is smaller than the median, the distribution is said to be negatively skewed.