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Table 8.1 - Estimated and initial data of the tail asin-
interrupter-distributor
Output data Calculated data
2
Intervals Number Average A m.g. Deviation x i m,
of size of items size of the m i, X i=A m-A m..g mm
A i, mm m, pcs item A m.g., mm
mm
25,2- 25,3 1 25,25 25,25 -0,35 0,123
25,3- 25,4 1 25,35 25,35 -0,25 0,0625
25,4- 25,5 4 25,45 101,8 -0,15 0,09
25,5- 25,6 18 25,55 459,9 -0,05 0,045
25,6- 25,7 19 25,6 487,35 +0,05 0,0475
25,7- 25,8 6 25,7 154,5 +0,15 0,135
25,8- 25,9 1 25,85 25,85 +0,25 0,0625
 25 - 1280 - 0,5655
A distribution curve is constructed - a histogram of actual
size according to the results of measurements.
Determine the average group value for each group A m.g.
and average arithmetic size A m. for all values:
 A i m i 1280 .
   25 . 60 mm
A m
N 50
Take into account deviations from the arithmetic mean
x i= A m.- A m.g. Then calculate the mean square deviation
according to the formula (8.2), pre-computing the sum of the
2
numbers by multiplication x i m i,
 x 2 i m i , 0 5655 .
    , 0 106
N 50
Absolute field of scattering by actual measurements:
)
  ( A max  A min  25 9 ,  25 2 ,  7 , 0 mm .
To obtain the theoretical normal distribution curve, the
following parameters are determined:
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