(NsTATISTI^ESKIE METODY DLQ ISLEDOWATELEJ (B:s (NpER(B. (NS ANGL(B. /s - (NfI[ER(B, (Nr(B.(Na(B.s; (NpEREGUDOW(B, (Nw(B.(Nn(B.s ((NmOSKWA (B:s (NgOSSTATIZDAT (B,s, 1958)
Keywords: (NmATEMATI^ESKAQ STATISTIKAs