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.
Definition: The median is the score that divides the distribution of scores exactly in half. Exactly 50% of the individual scores in the distribution are at or below the median (and 50% are at or above the median). The median is also the 50th percentile.