When the mean of a variable is less than the median, the distribution of the variable is said to be: Left-skewed. Lepokurtic. Platykurtic. Right-skewed. Symmetrical. When a variable's distribution has a sharper-rising center peak (and thus flatter tails) than that of a normal distribution, it is said to be: Left-skewed. Lepokurtic. Platykurtic. Right-skewed. Symmetrical. Use the following information for questions (3) and (4). Suppose a population has a size of six (6) and is comprised of the following numerical observations 6, 4, 7, 8, 1, and 4 Compute the arithmetic mean for the population. Compute the standard deviation for the population