, Q ( quantity = "") . . ( = total, ""; = ).
, 20 100 , = 20 , = 30 .
, . ( = average, "").
, (100 ) (20 ):
AX = TX / Q = 5 ( ).
, , "" . , , .
, , . P ( P = product, "").
Q TX. ,
PX = Q / TX = 20/100 = 0,2 ( ).
, 0,2 . , , , , = 5 . , ,
PX = 1/ AX
. , .
, , , . , TX , , . ? , : .
, . : 1) 2) .
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1. . 10 , 10 (, 1 1 ). , . , , .
2. . . , , 2 = , 3 = . . ( , , ).
, , (= AX 1 , AX 1 ).
, . , 1= 1 . , , .
, .