Graphic Methods for Presenting Facts
No of Percent & Pieces No orOrders
2000 100
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5 10 15 20 25
75 100
Size of Order in Number of Pieces
Fig. 157. Cumulative Frequency Curve Study of the Number and the Size of All Orders Handled During a Ten-days Test in a Certain Kind of Freight-handling Work
The orders are sorted into various classes or groups arcording to the number of pieces called for by each
order. The limits for the various classes were fixed by the exercise of a little judgment and are shown
by the vertical lines on the chart Curve "D" shows by small circles the actual number of orders found in each group. The curve is read
from the right-hand scale Curve "C" shows by small circles the total number of pieces (or packages) carried by the various orders
which are found in each group. Curve "C" is read from the left-hand scale Curve "A" shows the percentage of the total orders handled which contain more than any given number of
pieces considered on the horizontal scale of the chart Curve " B " shows the percentage of the total number of pieces carried by those orders containing more than