4 0

Mechanics for engineers statistics / 6 6 Johnston, Russell E. - Third Edition. - - xv, 401p. - - - - - . - . - 0 . - . - 0 .







5

















5







2 = =







7534005

2




2 --0------


6 --0-- 2 --------



0 2 --


--20------





--------20--


--------20--


----2

/ 2

/ 2

/

/