47 
Histogram and normal distribution curve 
of the residuals after adjustment in nine 
points. Autograph A7-310 
Right projector, base: zero 
Operator 1 
Number September 1963 
of residuals 
s =4,6 microns 
Fig. 2.2:6. Normal distribution hypothesis is accepted. 
8. 0 <Cchi = 15. 5. 
5 
Histogram and normal distribution curve 
of the residuals after adjustment in seven 
points. Autograph A7-310 
Right projector, base: in 
Operator 2 
Number 
of residuals September 1963 
s = 4,6 microns 
Fig. 2.2:7. Normal distribution hypothesis is accepted. 
2. 8 <*chi = 12. 6. 
o