STANDART SAPMA HESABI X U f f.U (U-Ū)2 f.(U-Ū)2 23.5 -3 1 -3 11.8641972 11.8641972 24 -2 6 -12 5.9753084 35.8518504 24.5 -1 23 -23 2.0864196 47.9876508 25 0 48 0 0.1975308 9.4814784 25.5 1 39 39 0.3086420 12.037038 26 2 20 40 2.4197532 48.395064 26.5 3 5 15 6.5308644 32.654322 27 4 2 8 12.6419756 25.2839512 ∑f=144 ∑f.U=64 ∑f(U-Ū)2=223.555552 A=25 ve C= 0.5 olarak seçelim U=(X-A) / C U1=( 23.5-25) / 0.5= -3 U2=(24-25) / 0.5= -2 U3=( 24.5-25) / 0.5= -1 U4=( 25-25) / 0.5= 0 U5=( 25.5-25) / 0.5= 1 U6=( 26-25) / 0.5= 2 U7=( 26.5-25) / 0.5= 3 U8=( 27-25) / 0.5= 4 Ū=∑ f.U / ∑f = 64 / 144= 0.4444444 σ U=(∑ f.(U-Ū)2 / ∑f)1/2 = (223.555552/144)1/2= 1.245981184 σ x=C. σ U= (0.5).(1.245981) = 0.622990592