32 Mathematical Symbols & Signs and Meanings Σ Summation Dollar sign
X Math Meaning. X = (2+5+9) / 3 = 5.333: Average / arithmetic mean :
X = (2+5+9) / 3 = 5.333: Average / arithmetic mean :
Average / arithmetic mean : X = (2+5+9) / 3 = 5.333: Average / arithmetic mean :
