Answer:
Pag sinabi pong population mean ay sum of all items divided sa number of items kung ilan ba ang numbers na given.
Step-by-step explanation:
So ang formula niya is
μ = Σx / n
μ = 1+3+8
3
μ = 12
3
then covert it to lowest term.
divide both numerator and the denominator into 3 so the final answer would be
μ = 4/1 or simply 4