Answer:
Least to Greatest:
0.5*10^-5, 0.00025, 3.5 x 10^-4, 1.45 x 10^-3, 25.4 x 10^-4, 0.025, 0.025 x 10, 1.25 x 10^-1
The answer would be A. He should use the mean because it is in the center of the data. I hope this helped ^^
Answer:
60
Step-by-step explanation:
220*2 = 440
+ 220/2 = 550
