This dataset consists of quarterly sales of a well-known brand of a particular article of clothing at stores of a large national retailer.  Even at the quarterly level, sales of a particular clothing brand, style, color, and size can be meager.  In may quarters, there are no units sold at all.  An example of a clothing article at this level of specificity is men’s Gold Toe “Windsor Wool Midcalf” black socks (which comes in only one size).  The following sales data are for a clothing article other than socks, but it is of the same level of specificity.  Retailers use this type of sales data to plan their inventory/order quantities. 

These data are used in the paper "A Useful Distribution for Fitting Discrete Data: Revival of the COM-Poisson" by Shmueli, Minka, Kadane, Borle, & Boatwright (2003).

count

frequency

0

514

1

503

2

457

3

423

4

326

5

233

6

195

7

139

8

101

9

77

10

56

11

40

12

37

13

22

14

9

15

7

16

10

17

9

18

3

19

2

20

2

21

2

22

0

23

0

24

0

25

0

26

0

27

0

28

0

29

0

30

1