Facial hair begins growing during puberty or shortly after. This typically happens between the ages of 9 and 15, but in some cases it may occur at a younger or older age [source: Avert]. There's no specific age when boys should begin shaving -- that's a question that parents must answer on an individual basis.
The median value is the mid-point of that value's distribution for all funds in a sample. For instance, one half of the funds in a group have returns below the median, and the other half has returns above the median. Sponsors Center.
The median is the middle value in distribution when the values are arranged in ascending or descending order. The median divides the distribution in half (there are 50% of observations on either side of the median value). In a distribution with an odd number of observations, the median value is the middle value. 54, 54, 54, 55, 56, 57, 57, 58, 58, 60, 60. When the distribution has an even number of observations, the median value is the mean of the two middle values.