age norm meaning in Hindi

Age norms extend from 8 to 25 and above.
Recent research has challenged Gesell s age norms, showing that newborns may have more abilities than was reported and that his developmental picture may be too slow.
In that era, the Giants were on a treadmill with an aging Norm Snead for two years and an aging Craig Morton for three, then Jerry Golsteyn and Joe Pisarcik for two.

noun.