If mean, median and mode are 10, 18, 26 respectively, the distribution is :: (A) Symmetric, (B) Normal, (C) Positively skewed, (D) Negatively skewed
Answer is D. Negatively skewed For a symmetric curve such as gaussian - mean, median and mode coincide. That is, they are the same value. - A skewed distribution will have different mean, median and mode. In fact, very different values of mean, median and mode is a clear indication of skewness. In positive skew, mean>median>mode. In negative skew, mean<median<mode.